people on other message boards told me to get RAM with low latency/CAS. I looked up the cheapest stuff and I found 1.5 gig Mushkin 2.5 DDR400 the day after thanksgiving. They said it sucked because of high CAS. Well then I found some Kingston Hyper something and it was also 2.5, and they said it is great. Well whats the difference?? The only things different about them is the heatspreader and the voltage.