I converted a brand new OCZ 450W ModStream PSU and It delivers about 30 amps...I ran a 10 amp motor cooler, PitbullX3 at 7 amps, Much More cell master at 7.5 amps and a pitbull at 6 amps all at once and that was its limit. So you know your good.
With a newer kind of PSU you have to connect the green and ground wires on the 20-24 pin mobo connector. Once you do this it will turn on. Then I only had about 11 volts. I put 3 10ohm 10watt resistors and got 12.4 volts, and I added 3 15 ohm 20 watt resistors to the 10 ohm 10watt ones and Im pushing 13.5 or so now. I also cut all the connectors off that went to the mobo and stuff.
This PSU I made is for higher power consumption I guess.
The OCZ powersupplies not only look good, but there SUPER DOOPER quiet and have LOTS of cooling for your Resistors. Mine arent even warm. I bought a much more worlds before this one and I cooked one, and cooked my 2nd thrusday before friday race night. I went out, got this and converted it in about 3 hours. The BEST thing about this PSU is it has the molex adaptors at the front, I have fans and stuff hooked up to molex's and I can plug/unplug at my own preference.
Thats the PSU I used, Thats Canadian dollars.
Its got all the good stuff, short protection, heat shutdown etc. It kicks arse.
If you guys want I can take pics and post them....Its a real good power supply.