I'm not every tech savy and was hoping someone on here could fill me in on a couple things. I have a 2009 Mac Mini with 1GB memory. I would like to install Mountain Lion and need to upgrade the memory. From what I've read I would be better off with 4GB. Since there are only two slots I would need two 2GB. When I remove the 1GB, would I lose any information? And, is this something a person familiar with the mini could do? Apple says not to do it yourself. Also, any suggestions on where to purchase the memory for a decent price?