An SSD will not make your games perform better or make surfing the web faster. It may shave off a few seconds of boot time, and a few seconds of load times in Crysis. Is that worth the performance hit you take by settling for a old video card?
SSDs are best left to people with larger budgets, for now.
Next up, you are spending an insane amount for RAM... again that will get you almost nothing in actual performance. Plus it's triple-channel RAM but your CPU supports on dual-channel.
So, here's a more reasonable build... far faster than yours in both every day tasks AND gaming.
My constructive criticism:
1st - The memory you chose is a 6GB set. You can only run dual channel mode if you run your memory in matching pairs. Running 3 dims will not allow dual channel memory mode. For this reason I suggest either 4GB or 8GB (2GB X 2 OR 2GB X 4) Stores are selling 3 dimm memory kits because 1366 socket motherboards can run memory in triple channel.
2nd - Buy a better video card. The 5850 has all of the newest technology including DirectX 11... If you're a hard core gamer and money is not an issue then get the 5870. But if you wanted to add a second one, two 5850's make for a serious gaming system.
get 2 channel memory, not 3
increase your ps size
cheaper p55 boards are having issues
no sound card shown ? using ob ?
ssd are nice but as others have said should be left to bigger budgets
What OS are you going to run ?
Do you have any transfer items ? like monitor,kb,mouse,speakers,wifi,router,modem if not maybe a configured system from Costco or such might fit your needs better