Take a look at the ASUS eeeBox. There is a new one on the way that will
even decode 1080p HD streams.
The old B202/B204 models are crap.
The newer B206/208 ones had an HDMI output using an ATI HD43xx series
graphics chip.
There are some interesting new ones coming over here soon.
http://www.engadget.com/tag/EeeBox/
The EB1501 & EB1012 are especially interesting. Ideal for media centre's.
Amazon, Play.com, Nexus all have the 1501 listed
Amazon & oyyy have the EB1012 listed.
Stephen D