Well, first I need some checkup on whether these are all compatible, and then I need some suggestions on a heatsink, processor, case, and hard drive. Oh, and I'm also going to need a wireless card. Thanks!
The graphics card and the motherboard are compatible.
The RAM however, the one you've listed is triple channel ram, and for SandyBridge motherboards you need Dual Channel. 1.5v, CL9, 1600MHz is recommended for "best-value-for-money". G.Skill and Corsair are popular choices.
+1 - your system will possibly never use 8GB, especially for gaming you'll never see it over 4GB, but the price difference is so little, its worth paying the extra in your initial build. Buying 2x4GB sticks also allows room for 2 more RAM sticks to be added in future if there's ever a worthwhile reason
Also, if you're not into overclocking (changing complex settings manually in the BIOS) I can recommend boards a whole lot cheaper (by close to $100!) which will do just as well. Even if you want to get an expensive board, you should still get something cheaper. You'll never need anything half expensive! Literally