Hey, I have a friend who recently turned 16 and he has a 500 dollar budget from his dad to get a mac, a mac laptop to be exact. Of course it won't be new but he wants to know what specs he should get or generation of model he should get for 500 dollars. He also wants to know what the best place is to buy one. (Craigslist, Ebay?) or is there a website where people only sell mac stuff?