Throwing your setup at this PSU calculator gives out 350W is good for you. I sa yget a 400W PSU though.
a solid 500w+ PSU with two PCI-E connectors will do the job for you.
Intel Core 2 Quad QX9650
Corsair PC2-8500 4GB
OCZ z series 550w, modstream500w, antec earth watt 500w, antec neo eco 520w, corsair 500w v2 are some budget units out there. They also offer better units up the $ chain, but I would stick to reliable brands rather then just buying a cheap brand with high watts.
Thanks for the great replies. I do have a background in electronics, so I do know that a PSU rated higher than what I need is OK seeing as how my PC components, as with any electronic device, only use what power they need.
I have done tons of research, and this company (and their PSU) seems awesome. This supply comes with a 7-YEAR warranty. I have chose the 650-watt because I love having the headroom to upgrade and will be doing so soon. You may be asking yourselves why I came here to ask a wattage question if I had already chosen a 650-watt supply, right? It's simple. I wanted to confirm my suspicions that 650-watts was indeed enough power for my rig and that my old PSU was just a crappy supply.....or was it? I bought it back in 2009 and I almost NEVER turn my PC off, which could suggest that my old PSU wasn't that bad? This is was my first PC build so I don't know what an average PSU lifespan is.
Anyway, this is why I need a very tough PSU, hence why I am entertaining the idea of purchasing a supply with such an extended warranty. I don't turn off my PC. The only breaks my PSU gets is during the very short time it is off during a reboot. LOL.
Also, I would like to hear if anyone has any experience with the warranty service with this company.