First time build

[therappingsquirrel]

Hello I am Dave, and I am planning to build a Gaming PC for around £600 ($950) I'll be buying from Amazon.co.uk: Low Prices in Electronics, Books, Sports Equipment & more from the UK :P and just a quick question if I made a repair disc for windows can I just use that for the OS disc? If so that would be great, but the parts I plan to use are:
Case: cooler master elite 430
Mobo: M5A99X
CPU: AMD FX-6100
RAM: corsair 1600 MHz vengeance memory
HDD: Generic 7200rpm 1TB
video card: XFX Radeon HD 6870
PSU OCZ 500w modXtream
aftermarket CPU cooler: corsair H60
extra case fans: Aerocool Shark 120mm
all of that together would be £547 ($865) I want to be as low as possible with the price so that's, one thing I'm not too sure with is the GPU I'm thinking of getting this one: XFX ATI Radeon HD 6870 HD-687A-ZHFC Graphics Card 1 GB PCI-e GDDR5 Memory DVI HDMI 1 GPU: Amazon.co.uk: Computers & Accessories
but again I'm not too sure, I don't want to really go over the price of that one to be honest, and do you think I'll need a better power supply? Anyway thanks for your time :P

[SugarJ]

You'll need an OEM or retail version of Windows to do an install.

You'll find most members here are not that fond of OCZ powersupplies. See if this one fits in your budget: Corsair CMPSU-500CXV2UK Builder Series CX500V2 - 80 Plus Certified Power Supply: Amazon.co.uk: Computers & Accessories

[therappingsquirrel]

Ahhh, OK then I actually save a little bit with that PSU as well :P

[SugarJ]

You do, but remember it's not modular like the OCZ you listed.

[therappingsquirrel]

Naa, doesn't really matter :P if it works it works

[Dzzope]

I've not checked those prices but have a shop around...

Ebuyer.com, Scan.co.uk, overclockers.co.uk are all good to buy from and there are some good deals to be had by shopping around.