Meedio is finally out. It's the successor to myHTPC. Pretty nice out of the box, even if it has some warts (no FLAC support, can't import OGG tags, no aspect ratio adjustment on video files, etc.). I'm not convinced yet that it's worth $40, but I'm getting there. Go check it out.
Doom 3 is out soon. If you haven't spent $2k to build a new system to play it on, you're dead to me. It might be out on Saturday, worst case is 12:01 AM on Tuesday.