Im in india and ram upgrade costs $100 but ram upgrade is only available at the apple stores. If i buy from authorised apple reseller, i get about 200$ discount but 4gb ram.(13" one) My use will be basic. Only internet, a few apps, iwork, iphoto and logic pro sometimes. No games at all, as i play them on my ps3. Im upgrading from 2008 black macbook(intel graphics, 2gb, core2duo) and it was fine most of the times but started lagging after 2-3 years of use. Please advise.