I have a late 2007 MacBook and I still have it loaded with the original 1GB of RAM that came preinstalled. My macbook has increasingly been running ridiculously slow lately (over the past 6-12 months) and freezing with the beachball of doom for minutes at a time occasionally and I was wondering how much of that is attributed to my lack of RAM. Yeah I realize 1GB probably just doesn't cut it anymore, so would an upgrade fix all my issues or should I try something else. I bought SL when it first came out, but that hasn't seemed to really help anything. How much RAM do you have in your macbook?