I found a guy on my local Craigslist selling a top end early 2009 24" iMac. The guy claims bad HDD, which is a simple repair. What you think? Should I pick this up. I would use it either as a light use computer for myself, (I have always wanted an iMac, but never really had the need) or I think with a fixed hdd and all the keyboard and mouse accessories I should be able to get at least $300 for it if I sell it working. What you guys think?