I'm looking into building a PC for gaming and I really have no idea on where to start. After reading through some of the other threads on here everyone seems friendly and knowledgeable so I figured here is as good a place as any to ask. I would really like to be able to play Battlefield 3, but I've heard you have to have a pretty powerful computer to run it. As of this point in time I have nothing for a pc other than the mouse I use for my laptop. I'm looking to spend anywhere in between 1000 - 1200 dollars (the cheaper the better!). Anyone else have any builds they've done for around this price range? Should I buy parts when I can, or get a list for my build and buy all at once? Any information would be greatly appreciated, as I've wanted to get into PC gaming for a while now.