I just bought an 20" iMac in October, and from what I read is Apple is releasing Leapord in October. I want to upgrade my Harddrive, Memory, and Ram. The thing is im not too computer shabby. Does apple upgrade these? I am sure they will charge but I will be willing to pay because I do not want to void my warranty. I couldn't find it on their website, so im not sure if they do. Here is my defualt Setup: So can anyone tell me what I need to make the most out of my mac (whithout voiding warranty).