I'm building my own gaming PC & need a decent PSU of around 750-1000watts. Can u

[batnball_ni]

link any decent cheap ones? Or do u know the name of any? and where to buy them? Willing to spend around the £70 mark i think.
So far I have purchased:
Motherboard: Asus P5k Premium WIFI-AP.
Processor: Intel Core 2 Quad Q6600.
RAM: OCZ PC2-8500 Reaper HPC edition OCZ2 RPR 10662GK.
Graphics card: Sapphire Radeon HD 4870.

(still to buy case)

Thanks all.
Servers? - No servers - just for playing world of warcraft - will only have 1 HDD too.