Hmm, I'm not going to vote in the poll, b/c I don't have experience with them, but IMO, you should go with a quad to say the least. 1080p HD formats take up a lot of processing power, and I can see why you had a conflict w/ a dual core AMD doing that. I'm guessing this is going to be an HTPC or something, right? My suggestion is the q8200 or q6600.