he doesnt mention the cpu used because its a mimi-itx board. they have the cpu integrated into the board. the nehemiah mini-itx boards are reasonably powerful, i had one a while ago before my shuttles, and now my sis has one to do work on etc. should work reasonably well as a HTPC as it also has a hardware mpeg 2 decoder on it. also works with a zalman passive NB cooler on the cpu instead of the tiny heatsink and fan you get with it, so it can be run passivly without problems
it MAY struggle with some really high quality DiVX stuff etc, but only very high quality.
also dude, that link is a competitor. they sell PC bits so better edit it out