Hi all, I have a 2.0 Ghz Macbook that is about a year and a half old. I have 1GB of RAM (2 512MB sticks) and it has done well for me thus far. I was wondering if I got more RAM, what good it would actually do me? I don't do anything hardcore, mainly edit photos in iPhoto, use Microsoft Office, surf the internet, etc. When I have for example, iPhoto open, my iStat Pro says that there is a little bit of free RAM available. So my question is, if I got more RAM, and thus had MORE free RAM available, would this make my programs run faster? Or would more RAM just enable me to have more programs open at once? Sorry if these are really basic questions. Also, as I understand it, I would have to get 2 equal RAM sticks, right? Meaning I'd have to get 2 1GB sticks? Also, would changing out the RAM invalidate my Applecare warranty? Thanks!