I've had my first Mac, a mac pro, for about a month now and absolutely love it. I'm thinking about replacing my Dell 700m with a Macbook and completing the transition. I'm looking at getting the white 2.0, the black is nice but I don't think its $150.00 nicer. I'll be replacing the hd and adding memory anyway. I have two questions before I pull the trigger. Do the newer Macbooks discolor like they did a few months ago or has Apple sorted this out. How about temps, have they figured out hoe to properly apply thermal paste or is heat still an issue.