Need help with a new Computer

[DjFuzz]

•CPU: AMD Phenom™ II X6 1055T Six-Core CPU ***Overclockable XXX ***
•HDD: 1TB SATA-II 3.0Gb/s 16M Cache Hard Drive (Single Hard Drive)
•MEMORY: 8GB (4x2GB) PC10666 DDR3/1333mhz Dual Channel Memory [+26] (Corsair XMS3 w/Heat Spreader ***Overclockable XXX*** [+24])
•MOTHERBOARD: Asus M5A99X EVO AMD 990X Chipset CrossFireX / SLI support for Socket AM3+ AMD CPU DDR3/1333 Mainboard ATX, PCI-E 2.0, DDR3 1333/1600/1800/1866, USB3.0, SATA-III /s, RAID, ATX ***Overclockable XXX***
•SOUND: HIGH DEFINITION ON-BOARD 7.1 AUDIO
•VIDEO: NVIDIA GeForce GTS 450 1GB 16X PCI Express (Major Brand Power by NVIDIA)


This is what iv got so far what do you all think im Sucky with comps
My Budget is 600 - 750 Including Win7 HP and need to be good for gaming

Thanks Alot
DjFuzz