PSU for this build

[rts_conrad]

I'm currently building a PC for my friend and I'm wonder how many Ws for the PSU for this build should be. Here's the specs.
Intel Celeron D 356 Cedar Mill 3.33GHz 512KB L2 Cache LGA 775 Single-Core Processor
GeForce 8600 GTS
Western Digital Caviar SE16 320GB
Samsung SH-S203B
Gigabyte GA-P35-DS3L
2GB Kingston DDR2-800

 

[The_Other_One]

A good 450w to 500w should be fine... A good one being one that has at least 25 amps on the 12V rail.

 

[daisymtc]

http://www.computerforum.com/90110-power-recommendations-video-card.html
it say 350W .........................18A for 8600GTS
So Should get a quality 400W which allow some room.
Preferbly 450W - 500W if he want upgrade later.