I want to buy one, but I don't think I'll be using it much, so I don't want to spend much. I think the most I'd like to pay is around 600. The reason I don't think I'd use it much is because when I'm home I prefer to use a desktop computer, and I'm good with my iMac. The reason I want to buy one though is because I will be travelling to Mexico for 9 weeks this summer, and I'll need it for some work. I've made up my mind on an early 2011 MacBook Pro. 2.3GHz dual-core Intel Core i5 processor 320 GB Hard Drive, 8x DVD/CD SuperDrive, 4 GB DDR3 RAM, Precision aluminum unibody 13.3 inch LED-backlit display, 1280-by-800 resolution Intel HD Graphics 3000 with 384MB of DDR3 SDRAM shared with main memory High Speed Thunderbolt Port, FaceTime HD Camera, Mac OS X v10.7 Lion How much would one with those specs cost if it were used?