Will this PSU work with my setup?

Hi, i am in the works of purchasing a new graphics card EVGA GTS 250 and Im wondering if a RAIDMAX HYBRID 2 630W ATX12V V2.2/ EPS12V SLI Ready Modular Power Supply will be able to take the load without dieing/ taking other components with it...i know that the raidmax is not known to be a particulaly reliable Psu company but i just want to know if it will take the load without going boom. My current build is:

-AMD Athlon 64 X2 6000+ / 3.0 GHz
-3gigs DDR2 (2 stock, 1 purchased)
-500 GB Western Digital HD
-stock gateway motherboard micro atx (not highend at all but it does the job).
-asus Geforce 8500gt (upgrading to gts 250)
-stock 400w PSU (upgrading to at least a 600w PSU

The power ratings for the raidamax read as +3.3V@25A, +5V@25A, +12V1@22A, +12V2@22A, -12V@0.5A ,+5VSB@2.0A.

To be perfectly honest i'm new as far as upgrading an building pc's and as you can probably see , i got this as a pre-built (yeah, don't flame me). Im just hoping to make a little more powerful with a gts 250 and new PSU . Note: so far with this 400w PSU there have been zero power issure (not really surprised there.)

The combine +12v rails are 530W, which is enough for your setup.

One of my systems: E8400, GTX260, 4gig ram, 2 HD, 8 case fans doesn't use more 360W - 400W on full GPU load.

Actually no, I don't have the raidmax right this second but i have a friend who has one waiting for me for free, the reason for possibly using it (its brand new). To answer your question, I think on newegg they run about 70$-80$.

If you are postive that you will be using just a single video card, then a high quality power supply in the 500 to 550 watt range will meet or exceed your needs. A good choice would be the Corsair VX 550. It can handle any single video card made and then some. Another good choice would be the Antec Earthwatts EA-500.

If you were a hardcore gamer into serious overclocking and mutiple power hungry video cards, then it would be a different matter.

Ok, well me friend gave me the PSU and i installed it with zero issues...been running for about 20 minuts no issues whatsoever. Thanks everyone.