Hi guys, Thinking of buying a Mini from MacMall. Is the Mac mini RAM user upgradable? Does it have a vacant slot, so I can just add a 2gb stick if I want? MacMall is charging 125 dollars for the extra 2gb. Should I just go with that? Or should I buy RAM elsewhere? I live in India, and am asking a friend to get it from the US. Couple of questions: 1. Is the warranty on a Mini worldwide? 2. If he buys the 599 one at an Apple store, I guess he will have to pay tax on that? 3. MacMall is without tax right? Thanks guys for the help.