My parts list for $306:
http://pcpartpicker.com/p/1H9dY
I was looking at the X3-450 CPU so you could use your GTX560Ti graphics card, but then I'd have to spend more on a power supply so I decided to go with a half-decent APU (an APU combines the CPU and the GPU).
FYI, you had chosen an APU which has graphics as well as a graphics card.
Other:
1) The Antec VP-450 has great reviews. I bought one after doing research.
2) Make sure the CASE has USB3 (not USB2) front panel if the motherboard does. So either BOTH USB2 or both USB3.
3) I chose different RAM. The APU works best with high-speed RAM (uses some for Video I believe). However the 1866MHz I chose probably works better due to its lower latency of 9 than the 11 of the 2133MHz you chose.
I didn't see any obvious issues other than no mention of WINDOWS but you didn't have it in your build. If you want to use all that RAM you require 64-bit Windows (not 32-bit).
If you need to buy Windows then get:
1) Windows 8 64-bit OEM, and
2) Start8 from Stardock (so you can bypass the new interface, but still access it if you wish. $5)
**I'll repeat as the above guy listed 8GB and 32-bit Windows. You MUST get 64-bit Windows or else you are limited to under 4GB of RAM (including VIDEO RAM).