my 24" iMac came with 1GB of memory, but I want to double that as soon as possible. the problem is I have always grown up on PC hardware, but I don't have a clue when it comes to this Mac stuff. so I figured I would ask the Mac pros in this forum to see what brand name memory I should get. I think mine has the PC2-5300 type, right? if so, please give me a link or two as to where I can find the best option for the best price. thanks in advance.