ViewSonic PC mini VOT530/550

The ViewSonic PC mini VOT530/550 is not much larger than your palm, so it's extremely easy to install or move around. As the PC mini 550 also comes with a Blu-ray DVD drive and convenient remote control, you can enjoy high-definition video and the best audio entertainment right in your living room or bedroom.

The incredibly small ViewSonic PC mini VOT530/550 has the computing power of a PC ten times larger. With better performance than many low-power alternatives, the high-performance Intel Core 2 Duo processor in the PC mini 530/550 is ideal for both digital entertainment and daily computing. 

Featuring a fast Intel Core 2 Duo processor and advanced power management, the ViewSonic PC mini VOT530/550 consumes only 18W of power even at full speed*, and is quiet at 22dB or less. Perfect for your entertainment center or den.

(source: http://www.viewsonic.com/vot530-550/)

MSI Wind PC Intel Atom 1.6GHz/ Intel 945GC

The MSI Wind PC Intel Atom 1.6GHz/ Intel 945GC/ A&V&GbE Proprietary Barebone System is a mini PC setup which comes with a PCI-E slot if you want more horse power. 

Specifications
• Mfr Part Number: 6667BB-003US
• VESA-mountable Nettop Barebone without ODD Drive Bay
• Processor: Intel Atom 330 Processor(1.6GHz, FSB 533 MHz, 1MB Cache), FSB 533MHz
• Chipset: Intel 945GC & ICH7
• Memory: 1x DDR2-533/400 SO-DIMM, Max Capacity 2GB
• SATA: Support a SATA2 HDD
• Audio: Realtek ALC888 Azalia 8-Channel Audio CODEC
• Video: Integrated Intel GMA450 Graphics Controller
• LAN: Realtek RTL8111DL PCI-E Gigabit LAN; 1x Wifi Antenna included
• Drive Bays: 1x 3.5" Internal
• Ports:
• Front: 2x USB 2.0 Ports; 1x Card Reader Slot
• Rear: 2x USB 2.0 Ports; 1x VGA Port; 1x RJ45 Port; Audio I/O Jacks
• Expansion Slots: 1x CF Card Slot; 1x Half-Height PCI Express Mini Card Slot
• Card Reader: 4-in-1 Card Reader (SD/MMC/MS/XD)
• Power Supply: External 65W, Active PFC Power Supply
• Operation System: Support Microsoft Windows XP
• Form Factor: Proprietary, 27.5 x 17 cm
• Color: Black
• Dimensions (WxDxH): 297 x 60.2 x 223 mm
• RoHS Compliant

The asking price is $148.99. Not a bad choice if you are looking for a small PC setup with a PCI-E slot.  

(source: http://www.ewiz.com/detail.php?name=MB-6667-3#)

Dell's OptiPlex 780 USFF

Dell has just added a new USFF to its OptiPlex 780 series. The new model only measures 23.9cm x 6.5cm x 23.6cm but still offers easy serviceability, standardized configurations and advanced remote-management capabilities that are similar to the other models in the same series. It equips with mainstream components such as Intel Core 2 Duo processor, processing power should not be an issue.   

The OptiPlex 780 USFF also features energy-efficient, environmentally conscious design that lets you estimate energy usage for multiple customized OptiPlex systems. It qualifies for an EPEAT Gold rating. Gold is the highest standard in the Electronic Product Environment Assessment Tool (EPEAT), a set of performance criteria for evaluating electronic products' environmental attributes in both public and private sectors.

(source: http://www.dell.com/us/en/business/desktops/optiplex-780/pd.aspx?refid=optiplex-780&s=bsd&cs=04)

Dell's Inspiron Zino HD doubles as an HTPC

Dell's most powerful mini PC so far, the 7.75- x 7.75- x 3.5-inch Inspiron Zino HD, is finally available.  Designed to fit just about anywhere, the Inspiron Zino HD packs power and entertainment into a small package. And with the option to interchange a choice of 7 vibrant colors plus 3 unique designs, the Zino HD can either blend in or stand out. Choose the standard Piano Black finish or customize yours with one or more of these optional styles: Flamingo Pink, Formula Red, Tangerine Orange, Plum Purple, True Blue, Spring Green and a choice of 3 patterns by artists Derek Welch, Mike Ming and Brittany Waldner.

The gadget can be equiped with a AMD Athlon Dual-Core processors and integrated with a ATI Radeon^TM  HD3200 graphics and optional ATI discrete graphics. It also comes with up to a 1TB hard drive. 

(source: http://www.dell.com/us/en/corp/desktops/inspiron-zino-hd/pd.aspx?refid=inspiron-zino-hd&s=corp)

Acer has just launched an upgraded version, the R3610-U9012, of the popular ion-based AspireRevo series for consumers in the U.S.

The AspireRevo R3610-U9012 is an extremely compact, one-liter tiny PC powered by a dual-core Intel Atom 330 processor (as opposed to an Atom 230 in the older version). This is an energy-efficient compact PC packs enough power to serve as an entertainment center and you can attach it to a TV or LCD for additional space savings.  

Connectivity features of the AspireRevo R3610-U9012 include Gigabyte Ethernet and 802.11b/g/n wireless as well as an HDMI port, eSATA port, VGA port, and multi-in-1 digital media card reader. It also comes with HD audio support, a 160GB SATA hard drive and 2GB DDR2 memory.

The Acer AspireRevo R3610-U9012 Nettop is available for a MSRP of $329.99.
 
(source: http://hothardware.com/News/Acer-Unveils-AspireRevo-Nettop/)

Lenovo's IdeaCentre Q Series Mini PCs/nettops

 (source: http://shop.lenovo.com/)

Meet the Q Series from Lenovo! If you are tight on space and on a tight budget, why not consider a mini PC? There are 3 models on sale now on Lenovo's website, all are based on the same Atom-ION platform.

Q100. Basic mini PC
The size of a book and just right for email, internet, music and more. They're quiet and consume less energy than standard PCs.

Q110. Premium Full-HD mini PC
As tiny as Q100 with upgraded graphics, more storage and Full hi-def support. Pair with your HD TV for an affordable media PC.

Q700. Compact home theater
Designed to double as your PC, home theater and sound room in a décor-friendly tower about the size of a DVD player.

Fujitsu's Esprimo Q1500

(source: http://www.engadget.com/2009/09/06/fujitsu-esprimo-q1500-core-2-duo-and-blu-ray-in-a-laughably-sma/)

If you want a powerful htpc system which comes with a mainstream Intel Core 2 Duo processor and Blu-ray drive, Fujitsu's new Esprimo Q 1500 may be what you are looking for. It is packed in a small chassis similar to those nettop PCs that use the Atom platform but with more power to do more jobs. The Esprimo Q 1500 also comes with 4GB of RAM, 320GB hard drive, 6 USB ports and will be available in September.

Akoya Mini E2076D world’s smallest Ion-based HTPC

Acer Aspire Revo has been the world's smallest Atom-ION platform but it will be replaced by the new Akoya Mini E2076D which only measures 173mm high  x 20mm thick. The Akoya is the product of Medion, a German company. According to the source, it will come with 2 GB Ram, 320GB hard drive and bundled with wireless mouse and keyboard. It will be available in September. Due to its ability of HD playback, you may consider this new gadget for your htpc setup. (source: http://www.sunrainet.com/)

More ion-based htpc available

More and more PC vendors rush into ION-based platform market. Previously we have Asrock, Acer and Asus, and now iChill N330 ION. It all depends on what you want, Aser's AspireRevo is cute but it does not have a DVD/BD drive, it comes with a 4-in-1 card reader instead. ASRock Ion is nice too but it lacks of an eSATA for your external hard disks. And mind you, most of these ion-based bared-bone platforms do not have the complete components inside, for example, RAMs and Hard Disk may not be included in the package.  

(pic of Asrock black is taken from http://www.hkepc.com/)

On another hand some vendors would just release plain boards for the consumer market, e.g. ASUS AT3N7A-I and INNO 3D iChill N330 ION, both provide eSATA for faster excess to your external hard disk storage.