Just saying this is under AMD general. Anyway it looks like a good build I don't have that experience with Intel builds. You could get the 6830 instead and OC up to the clock of 6870 Since they are the same chip set, if you want to save a little. Though you should plan ahead what you want for graphics because you can only crossfire two of the same family GPUs i.e. 2x57xx or 2x69xx and I believe that the same goes for SLI as well. What do you plan to use for Cooler and PSU.