Looks good, but three things:
1) You're going to want to get a CPU cooler, especially with a 6700. The stock Intel ones suck.
2) Check out the Antec P180 case... I have it and it's beautiful.
3) Just going to warn you about that sound card. I was using onboard sound from my Asus P5W DH Deluxe and decided to get that sound card one day (nothing was wrong with my onboard, just wanted to get juicer sound/better FPS in games) and it really fucked up my PC while the card was in there (it got to the point where the PC wouldn't boot into Windows normally or in Safe Mode). It's not only me though, I've heard of a number of cases like this.
XI Wiki

