I wasn't sure how much power I needed because like I mentioned before the 350w came with the case. So, I did some research and found the below information. I also discovered that it doesn't matter how much power supply you have your computer will only take what it needs.
Power Supplies: How Much Power Do You Need?
AGP Video Card [30W - 50W]
PCI Express Video [100W - 250W]
Average PCI Card [5W - 10W]
DVD/CD [20W - 30W]
Hard Drive [15W - 30W]
Case/CPU Fans [3W (ea.)]
Motherboard (w/o CPU or RAM) [50W - 150W]
RAM [15W per 1GB]
Processor [80W - 140W]
For overall power supply wattage, add the requirement for each device in your system, then multiply by 1.5. (The multiplier takes into account that today's systems draw disproportionally on the +12V output. Furthermore, power supplies are more efficient and reliable when loaded to 30% - 70% of maximum capacity.)
Got this from : PC Power
I just ordered a 500W power supply from Fry's. Hopefully, it will be back like before when I install it.