So i like all of the things you picked except your motherboard, it's not the best choice for a AMD build, are you planning on adding another video card, if not why go SLI, huh?
Get a DFI LanParty Ultra-D:
Or just get a DFI SLI board if you are planning on getting two cards,
The CPU, RAM, Video card and Case are all fine but:
1) What's your budget?
5)are you only building the tower? you don't need a monitor, keyboard etc.?
6)maybe a sound card?