Looks good, I only have a few suggestions:
Processor: Right now you have an i5-3470, for $20 more you could get the i5-3570k which is a significant improvement. Either way, you're fine.
Motherboard: That's a good motherboard you have listed, but take a look at
this one, It's cheaper. Although it does have less ports, looking at your current build, that shouldn't be a problem. Just something to consider.
Operating System: I'm Just wondering why you went with Windows 8 Pro.
Everything else looks solid! I guess you could find a cheaper case (
This one, maybe?) but that's not a big deal at all.
Nice job!
DonQuixoteMC