Good Gaming PC

[Peter Moyes]

Intel i5 3570k (Purchased)
MSI Big Bang Mpower Motherboard (Purchased)
XFX HD Radeon 7870 Double D (Purchased)
Corsair Vengeance Red LP 1866mhz
Western Digital Black 1tb
OCZ Vertex 450 128gb
Corsair Builder series 750w
Corsair Hyper 412s Cooler
Zalman Z11 Plus
Windows 7 Pro
I have £450 to spend on the none purchased parts, should I change anything? And what quality will this play games at?

 

[Tradesman1]

Looks good, prob play most games at highest settings, though that of course will depend on the game