Regarding HTPCs, I should mention that I picked up one of these nifty Acer Aspire Revos from Best Buy over the holidays to use as an HTPC in my family room, and it is a, dare I say, perfect HTPC solution! Together with my buddy Jeff, (of Hirschy highway fame) we have figured out how to get this thing working as an XBMC front end that can play full 1080p video!
Its onboard graphics chip does all the heavy graphics decoding work so that its pitiful main CPU doesn't have to do much. Simply by installing the Linux-based XBMC live to the hard drive, you have a full blown media center in minutes. Not only that, its library features are amazing: using imdb.com and thetvdb.com, it can index my entire movie and tv collection in no time and present some amazing views.
We are using a standard Windows MCE remote, which of course can be controlled in turn with a properly configured Logitech Harmony remote as well. Not only that, we've got suspend mode working correctly through the remote so that it takes just a few seconds to turn on and off.
I plan to get another one of these for my bedroom. For $200, it's worth having one on every TV in the house!