how much Watt do i need?

[dvr]

hm, i need help choosing psu..

rig:
phenom II X3 720 BE 2,8ghz
his hd 4670
320GB hdd
2x2gb RAM

how much power supply do i need?
a. if i don't OC
b. if i OC (please tell me to what GHz, and how much power needed..)


any suggestion is appreciated.. thx

 

[dvr]

how do i delete this topic?
it seems i post it double