Originally posted by Geffy
Processor
AMD Athlon 900MHz-1.1GHz - 50W
AMD Athlon 1.2MHz-1.4GHz - 55-65W
AMD Duron 1.0MHz-1.3GHz - 50W
AMD Athlon 1.47MHz-1.73GHz - 75W
Intel Pentium III 800MHz-1.26GHz - 40W
Intel Pentium 4 1.4GHz-1.7GHz - 65W
Intel Pentium 4 1.8GHz-2.0GHz - 75W
Intel Pentium 4 2.2GHz-2.4GHz - 90W
Intel Celeron 1.0GHz-1.1GHz - 35W
Intel Celeron 1.2GHz-1.4GHz - 50W
The others are right i think, but these are probably more like
Processor
AMD Athlon 900MHz-1.1GHz - 50W-60W
AMD Athlon 1.2MHz-1.4GHz - 66-72W
AMD Duron 1.0MHz-1.3GHz - 45W-60W
AMD Athlon 1.47MHz-1.73GHz - 65W-75W
Intel Pentium III 800MHz-1.26GHz - 21W-30W
Intel Pentium 4 1.4GHz-1.7GHz - 73W-85W
Intel Pentium 4 1.8GHz-2.0GHz - 41W-52W
Intel Pentium 4 2.2GHz-2.4GHz - 55W-58W
Intel Celeron 1.0GHz-1.1GHz - 28W
Intel Celeron 1.2GHz-1.4GHz - 30-35W
I got that from a great little program called NewWatt 3 which can tell you the power output of every processor and their power output. If you put more voltage or overclock them you can find out the power too. I can't find the link for it right now, google isn't being helpful
I agree, you're overdoing it with a 500. 350W or 400W is heaps enough, just get a good brand and you'll be fine. The only reason you'd need that big a supply is if you were watercooling or had lots of cathodes, lots of big fans and lots of drives