I dislike the PSU. You only need 550W maximum, and that will allow the use of any GPU, and an entirely overclocked system. So 750W is overkill.
You'll save some money with this, and it is a much better power supply. It has good parts, the OEM is Seasonic, but branded by XFX:
http://pcpartpicker.com/part/xfx-power-supply-p1550sxxb9
You'll like the 7770GHz. I'd recommend the 7790, if you can afford it. It will give a little bit more performance.
Quiet dated according to http://www.videocardbenchmark.net/gpu.php?gpu=Mobility+Radeon+HD+4200&id=493
It's Micro-ATX, but the case supports that, thankfully.
Ok, so here is my to do list for upgrading my computer area:
http://pcpartpicker.com/p/13RNN
Intel Core i5-3570K 3.4GHz Quad-Core Processor
ASRock Z77 Pro3 ATX LGA1155 Motherboard
Sapphire Radeon HD 7770 GHz Edition 1GB Video Card
NZXT Source 210 (Black) ATX Mid Tower Case
XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply
Intel EXPI9301CT 10/100/1000 Mbps PCI-Express x1 Network Adapter
Everything is a complete overhaul, except for my hard drive.
First parts to get upgraded:
Sapphire Radeon HD 7770 GHz Edition 1GB Video Card
NZXT Source 210 (Black) ATX Mid Tower Case
XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply
Any comments on the overhaul?
Get a Z77 motherboard to go with the 3570k. Or you will probably regret that later in life lol.
Other than that, it looks fine.
Alright then.