I am attempting to build a gaming pc and it will be my first build. I know that I want to be running two radeon hd 5870 video cards using the crossfire but what I am trying to figure out is a good cpu and motherboard to handle these. Also I don't know much about sound cards so if anyone can give me any info on what they think would be a good card to handle gaming and also some movies (thinking of adding a blue ray player) that would be much appreciated. Like I said this is my first pc so go easy on me I'm still learning and any tips are greatly appreciated. Thanks in advance!