Is this a good GPU?

[jpd1977uk]

I'm thinking of getting the XFX ATI Radeon HD 6870 Black Edition 1024MB GDDR5 PCI-Express Graphics Card to play games such as GTA4, FEAR3, The SIMs 3 HalfLife ect?

Rest of spec:
Intel Core i5-2500K 3.30GHz (Sandybridge) Socket LGA1155 Processor - Retail
Akasa AK-CC4005SP01 Venom Nano CPU Cooler
Asus P8P67 LE Intel P67 (Socket 1155) DDR3 Motherboard ** B3 REVISION **
Corsair XMS3 4GB (2x2GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit
Microsoft Windows 7 Bundle - Home Premium 64 Bit
- Western Digital Caviar Blue 500GB SATA 6Gb/s 16MB Cache - OEM (WD5000AAKX)
Stock Code: SW-000-OP
LiteOn IHAS124-19 24x DVD±RW SATA ReWriter (Black) - OEM
OCZ StealthXStream 2 700W Power Supply
BenQ G2222HDL 21.5" Widescreen LED Monitor - Black

 

[jpd1977uk]

Hmmm, I can proberly push my budget up to £180 Inc VAT....

 

[jpd1977uk]

Hmmm, I can properly push my budget up to £180 Inc VAT....

Either get this
Asus ATI Radeon HD 6950 DirectCU II 1024MB GDDR5 PCI-Express Graphics Card

or this one:

Asus GeForce GTX 560Ti DirectCU II 1024M B GDDR5 PCI-Express Graphics Card

I'm not planning to crossfire...
BTW, will that PSU be ok for either of those cards?

I'm thinking of ordering Monday or Tuesday