I just bought an iMac this week and would like to up grade the memory. I was going to max it out at 4GB, but when i start looking online...the price differences between the Apple Store and other sources stopped me. So I figure I'd better ask for some advice before I start buying. I'm using an iMac 2.0 Core 2 Duo; 20"display/250GB drive, with the Anodized aluminum body (if that matters). Currently has the stock 1GB. The Apple store wanted $1K for 4GB...and others were A LOT less. Is it just a matter of buying 2x2GB 667MHz DDR2 (PC2-5300) or is there something else I need to be looking for, can I buy 2 2GB from: http://www.macmall.com/macmall/shop/detail.asp?dpno=7096489&Redir=1&description=Crucial%20Technology-2GB%20PC2-5300%20667MHz%20DDR2%20Unbuffered%20Non-ECC%20CL5%20SDRAM%20200-pin%20SODIMM-DIMM%20Memory or do I need to look for something else. Sorry, if the question is so basic I'm new to Mac's, well it's been many years since I've used one. I'm so used to working w/ PC's it's got me second guessing everything..except not wanting to continue using PC's. Thanks!