So I've come into a bit of money (woo tax returns!) and I'm looking to spend some of it putting together a new computer. To give you an idea of the kind of power I am looking for, I'd like to be able to play games like Oblivion, Bioshock, whatever the newest Battlefield game is, Orange Box, COD4, etc. Price wise I am looking to spend about $600-700 (300-350£) USD on the CPU itself, if that is feasible for the games I'd like to play. For the record, I would like to upgrade to Vista at this time as well (I also don't take Vista's price into account as part of the computer's price... just the hardware). My only problem is, there is so much crap out there these days that I don't know what is good, or what is horrible. I built my last computer about 10 years ago and I haven't kept up on things since (my last computer purchase was a prebuilt =\ ). It might be a lot to ask for someone to find all my parts for me, but could someone at least point me in the right direction, or just give me some tips on what to look for in MOBOs, Video Cards, etc.?