I want to build a gaming PC that will run BF3 on high as well as other games in the future. Here's a link for what I have chosen so far: System Build - PCPartPicker I already have 2 HDDs and an optical drive. I chose a 750w PSU because I plan to Crossfire at some point. Since I'm not sure what to look for in a motherboard, I wasn't sure if this one would be sufficient or not. I also wanted to know if there's any reason to get 8GB of RAM instead of 4. I'd like to be in the $800 range, and any suggestions would be great.