according to that site you gave me sithspawn. With My Motherboard, AMD Athlon XP 2400+, 2HD's, A CD-RW, DVD-ROM, VGA Card, one pci network card, one pci sound card and 256mb of ram, 768mb after upgrade and 2 fans, 7 after upgrade my calculations were as followed:
6.9 amps - +3.3v
11.4 (19.4 after 512mb ram upgrade) amps - +5v
14.065625 (15.065625 after 7 fans total: 2 PSU, 4 case, 1 CPU) amps - +12
By the formula to figure out watts: Power = Current * Voltage
I figured I had
22.77 Power - +3.3v
57(97) power - +5v
168.7875(180.7875) - +12v
Everything in parenthesis is of course refering to everything in parenthesis above that. Those 3 numbers equaled to 300.5575 when I totalled the larger number (22.77 + 97 + 180 = 300.5575).
So basically a 350w PSU with enough amperage coverage could cover all my needs and that guy was pitching 560w!?! I figured that would be bull****. So it seems the W0009RUC 420W power supply from thermaltake will be sufficient eh?