Thank you for the information, everyone. My next question is about the different wires that come with the power supply. I'm not sure if all power supplies come with the same amount of wires.
My current power supply has one of those big 20 holes that connects to the motherboard (which I'm pretty sure is a standard for most all PSU's) but I was also using 5 of those 4 hole things (Picture)
. They were connected to two hard drives, two CD drives, and a video card.
Would this Power Supply be good for my computer?http://www.amazon.com/Coolmax-M-500B-Supply-Connectors-ATX12V/dp/B0013FIO04/ref=sr_1_3?ie=UTF8&s=electronics&qid=1278435190&sr=8-3
. It says that it is ATX12v but it doesn't say how many wires it has...I need at least 5.