i got a northwood p4 3.4c ghz with HT
- evga nvdia fx5600
- creative sound blaster audigy 2 platinum ZS
- Samsund CD-RW
- plextor DVD+/- RW
- intel mobo
- 5 12 volt fans....
- spire cooler for CPU
- 1 gig of ddr 3200 (RAM)
- floppy drive
- and a IDE HD

I think 400+ will do you fine. The ultra x-connects are nice, thermaltake psu's are stable, and a few other brands out there. Basically the more you pay, the better quality it is.

how can i tell my power supply brand? ive been searching for it and i cant find it.. the only thing it says is
switching power supply
Model: ATX-500W p4

if u cant find the brand then its probablly a generic psu and that if u want something better get a name brand one...

The brands to look for are mainly:

Antec
Enermax
Thermaltake

Those are proably the most common and best PSU's manufacturers availible.

Enermax

LOL... non of those are sold here

What area of the globe do you live in? Do you buy locally or online?

I'm looking at the OCZ PowerStream 520W thing unless there's better... my current one is 17A on the 12V line.. and the above is 33A on the 12V line... and i'm maxed out right now. Nearly double, should be fine.. right??

dude lives in south america i think (sorry if i have you confused with someone else)

No. ur right... I buy locally most of the time, but sometimes, when i have money i order it from new egg and then a master card service brings it to colombia... but the prob is that it is expensive... when i ordered a floppy drive and spire cooler and heatsink. the shipping cost was 18 bucks...... so thats y i want to buy things locally

(silightly off topic)
check out the psu q&a page i fond a cool wattage calculator

where is the link i need one of those

http://forums.overclockersclub.com/?showtopic=30852

ummm my proc is not in th elist
Which are the onboard devices?

thats just general stuff, no specific items, they all use about the same

yeah but i want to know what do they mean with on board devices?

on board lan, sound, stuff like that

Oh and this mobo how many onboard stuff has?
Intel "D875PBZLK FMB 1.5" i875P Chipset Motherboard for Intel Socket 478 Pentium 4 Extreme Edition CPU -RETAIL


Model# D875PBZLK FMB 1.5
Item # N82E16813121206

Specifications:
Supported CPU: Intel Pentium 4 / Pentium 4 Extreme Edition Processors (Hyper-Threading)
Chipset: Intel 875P + ICH5R
FSB: 800/533MHz
RAM: 4x DIMM for Dual-Channel DDR400/333(ECC) Max 4GB
IDE: 2x ATA 100 up to 4 Devices
Slots: 1x AGP 8X/4X (0.8/1.5V), 5x PCI
Ports: 2xPS/2,1xLPT,1xCOM,8xUSB2.0(Rear 6),1xLAN
Onboard LAN: Intel 82547EI Gigabit (10/100/1000Mbits/sec) Ethernet
Onboard SATA/RAID: 2x Serial ATA 150, RAID 0/1
Form Factor: ATX

I would say 480+ or higher depending on what you want and the cost and what you feel confertable with. You may have to spend some money if you want a good brand. I get a good brand online if you get cheap one it won t last long.