Hey guys, I ordered 2 X Crucial 1GB 200-Pin DDR2 SO-DIMM DDR2 667 (PC2 5300) sticks of RAM. Just to let you know Micron is the company that makes the RAM that comes in your Apple. Micron makes Crucial. When I got the memory it had a Micron sticker and the memory chips on the RAM said Micron on them. They look identical to what you buy in the Apple store (and they probably are.) Here is a link to what I bought. http://www.newegg.com/Product/Product.aspx?Item=N82E16820145048 That is what you should need for all Intel Macs (except the mac pro) Anyway, I expected their to be a nice increase in speed with the install of 2GB of RAM. After installing the RAM I was SHOCKED at how zippy the computer was. It was MUCH MUCH faster at everything. Apps load so much faster now and run much smoother. Best $145 I have spent on a computer upgrade. I am VERY impressed, Macs must really like RAM.