good choice on the parts mayne specially the PSU. listen to newls1, he knows his shit.
may i add a recommendation? did you already get the hard drive? cause if not just go with a 1TB, you can get one for $79 now a days. cuz when i built my pc i always thought i will not need a lot of space, so i only got a 320gb at that time(very tight budget build) and now im regretting it. well you can easily add another one, but for a minimal price difference you can just go with the 1 TB.
Will all that good components that you have, you may want to try overclocking(just a lil bit for now, then go big later when you upgrade the cooling) and doing a raid setup in the future.
which case did you get? (just curious)