Hello everyone, i wanna buy a new laptop that will stay with me for the next 3-4 years without feeling so behind tech. I need it for uni as well as gaming and so on so ofcourse i'm thinking about the macbook pro 15" retina display with full graphics, ram, so on. Is there anything that i do not needs to upgrade while customizing the retina? Like GhZ or so on and i wanted to ask ive read alot of negative things about the new laptop regarding speed of mountain lion as well as problem with the frequency of scrolling on web pages and so on. Id usually wait for 2nd generation retina but i have no time and need a new lappy within a month or two. So any advice?