Gaming PC Build..... is this blueprint good enough?

Here it is

Parts:
[box=yellow]CPU:Intel Core i5-3570K 3.4GHz Quad-Core Processor ($169.99 @ Microcenter)
Motherboard:Asus P8Z77-V LK ATX LGA1155 Motherboard ($124.99 @ Newegg)
Memory:Corsair Vengeance LP 16GB (2 x 8GB) DDR3-1600 Memory ($64.99 @ Newegg)
Storage:Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive ($89.93 @ NCIX US)
Video Card:XFX Radeon HD 7870 GHz Edition 2GB Video Card ($231.98 @ Newegg)
Case:Rosewill REDBONE U3 ATX Mid Tower Case ($40.00 @ Newegg)
Power Supply:OCZ Z Series Gold 850W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($119.99 @ NCIX US)
Total: $886.87
(Prices include shipping, taxes, and discounts when available.)[/box]

Am I missing anything? Any recommendation?

Michael Thanks! I have a PC capable of playing CF, but my bro's comp broke down so I might buy a new one and hand him my old one, also I have an external 1TB portable HDD so I think a total of 2TB is good

@Forlon thanks! Hopefully I can get it by Boxing Day