Whats the cheapest and best PSU?

Luke117

Distinguished
Jan 22, 2012
30
0
18,530
Im upgrading my power supply in a few days. I need to know what is the cheapest and best PSU thats 400W or greater.
Thanks :)
 

Luke117

Distinguished
Jan 22, 2012
30
0
18,530

3GB DDR3 @ 1333 MHz
AMD Athlon II x2 220 @ 2.8 GHz
Sapphire Radeon HD 6570( well, buying it once I get the new PSU)
1TB HDD
DVD-RW