use a discrete GPU. a 5xxx series card will do bitstreaming and the 5550/5570 cards and above will have more power available for deinterlacing and post-processing effect but they won't do 3D. The 6xxx series will, but they haven't released the low-end cards that are more suitable for HTPC use yet. I believe nvidia might have some 3d capable cards, but I'm not sure since I think 3D is a crummy gimmick anyway.
11/16/10 at 10:29am