660ti on 430W power supply

Nvidas website says a minimum PSU of 450W. So going higher then that is prolly a good idea. Especially when most peoples psu's really are not rated for what they say.

I heard many places though that 450W is for a crappy PSU worst possible scenario. anything that is 80+ bronze,silver,or gold will be able to handle it. I am looking to upgrade though but to be honest that will be after i upgrade my CPU (4100 to 8350 hopefully)

i just noticed i use the word "though" alot

How many amps that are available on the +12V rail(s) matter too. Can you take a photo of the tag on the side of the PSU, Upload it to photobucket, and link it here =D

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

there you go  

Wow, 32 Amps on a 430W? That's pretty damn good from what ive seen.
660TI recommends 28Amps (Along with the other basic parts to make a system work)
on the +12V rail. To be safe, I would get a GTX 660 (Non TI). Always good to have a little headroom =D and only needs 24AMPs (with the other basic parts)
But reguardless, a 660TI "should" work. It would just be putting a little too much strain on the PSU imo.

I already purchased my 660ti lol it runs perfectly, havent got a BSOD even after intense gaming on large 1080P screen *knocks on wood* and im not exactly sure what all of the Volts on Rail stuff is... lol

Yeah, I just noticed and editied lol (Dumb me)

But yeah, you should be fine, I just personally wouldn't attach tons of USB stuffs to it, Its already running "close" to maximum capacity =p

lol its all good man