I need a new PSU for a gaming rig. My current one reboots my computer when im running my setup at full strain. 
 
My setup is : 
 
Q9550 OC to 3.2 
Gigabyte EP45-UD3LR 
Adata 2x2gb 1066mhz extreme edition 
Galaxy GTX 275 standard 
NZXT Whisper 
Arctic Cooling Freezer 7 Pro 
1x Seagate barracuda HDD 
1x DVD writer 
 
Any suggestions? im working with a budget of around $170 to $200

Jesus powers.

Corsair is a good brand.

I always use corsair power supplies.  Apart form my irrational brand loyalty, they are well built and reasonably priced.

Thats the one I have I think it's the best for the price and corsair makes high quality stuff

Yeah buy a corsair one, they're probably the best PSU's out there right now I would say.

thanks for the reply guys, il look into getting it after my next tattoo (money issues). 
 
just out of curiosity, if my system is rebooting during high intensity apps like crysis (the only thing thats done it so far), it will be because of power issues right? There is no BSOD or errors, just reboots as if someone took the plug out and put it back in. 

Corsair or PC Power and Cooling. Probably the Corsair 850w is what i'd go for personally.
 
And  the rebooting can be from not enough power, bad voltages, overheating, etc.
 
I know you just OCed did you run any stress tests on it? Prime95 for a good 8 hours or so? Memtest86 for an hour or so? 
 
If you are failing either, your OC is not stable and will cause random reboots, crashes, lock ups, bsods, etc.

" Corsair is a good brand. "

Run in the IntelBurnTest; it is Prime95 done in 5minutes. I was running it last night while messing around with a 3.4 OC and it kept failing on stock voltage, went back to default and to bed however that was at stock voltage. Also know that Quads can run at up to 1.3675 volts or so and with vdroop thats about 1.4 in the bios.
 
The BSOD can be from bad drivers or something as well. I remember that happening to me. I'd suggest the intelburntest personally before thinking it is the PSU. What is your PSU? You could also just be trying to push that card too card and its crapping out on you. I remember I got the 8800GTS G92 and figured i could push everything; running CS:S with 16x AA and AF caused bsods and random lockups. Dropped it down to 8 and it was fine. Now on my GTX280 its fine at 16x.
 
FYI I am running a GTX280, 8800GTS G92, 5 HDDs, 1 DVDRW on a 700w OCZ GameXStream PSU.

Thats most likely a graphics card driver issue and NOT a PSU issue. I'd suggest reinstalling your video card drivers; uninstall, reboot, reinstall. If that still fails, uninstall, reboot in safemode, use a drivercleaner app to remove nvidia graphics drivers, reboot in normal, install drivers, reboot again.
 
Fyi; got 3.4 stable now just needed a little more voltage (its at about 1.3; with vdoop goes to 1.22-1.26). Gonna let it run for a week and push it some more next week (hoping to match my E8400 at 3.6)

I've got a Corsair 750w i7 PSU and I haven't had any problems. Go with that brand if you feel the need.

Yes it could be a corrupt driver; mixture of either bad directx install, driver just not liking your graphics card or multiple drivers installed.
 
I'd personally take steps before buying a new psu; unless you really just want one :p

Remove the NVIDIA Display Drivers from control panel, reboot, reinstall, reboot again.

Buy any power supply, most are decent... Corsair, QCZ, there all good, but QCZ has a nasty habit of burning out... Least mine did.
For what you need, you need something like a 700w psu.

ok, i started crysis, set everything to very high and 1680x1050, running fine so far. if this fixes my problem dude i will be so happy

You should probably update to the latest drivers from the NVIDIA page. When you update drivers, make sure you uninstall the old ones first, reboot, install new drivers, reboot again.
 
@Grim_Fandango said:

" Buy any power supply, most are decent... Corsair, QCZ, there all good, but QCZ has a nasty habit of burning out... Least mine did. For what you need, you need something like a 700w psu. "

Well you can download em prior to it, but yup.
 
I thought you already fixed the problem tho? Or did it crash again?

ok, did everyting you said, ran the crysis benchmark and it rebooted after 5 loops. fuck this im getting a new powersupply

I'm using a cosair 750 watts psu, not problems so far. There are tons of wires though because it's for sli. If that doesn't work for you, I recommend anything from the cosair brand because I think it is good.

So ok I have decided to go for the Corsiar TX750. I have tried to narrow down my reboot issues and it seems to be the PSU. Thanks for your input guys!