I have a 15" MacBook Pro that I've used for photo and video editing for the past few years. I bought it new back in 2010 with the top of the line i7 processor at the time. Now I'm looking to get either a new MacBook Pro or an iMac, but I can't justify keeping my old MacBook Pro around to collect dust. I've heard I can still get good money for my laptop. I do have nice programs on there like Photoshop, Final Cut Pro, etc., but I think I'd have to wipe the whole hard drive clean when I resell it just to make sure I don't have any personal information on it. What's the best way to sell my used laptop?