I currently need a laptop of some sort but have a very fast PC desktop for my heavy lifting, PC gaming, photoshop, etc.. I am also interested in learning to program for iOS using Xcode, and I don't want to go the hackintosh route. Since I have a desktop, my general usage for this laptop would be very light, i.e. web browsing, email, tweetdeck, iTunes, light Microsoft Office use, etc. I am just wondering if these models would be good enough for Xcode? Would the 11" model be sufficient? (I could plug into one of my PC's external monitors for more screen real estate). I guess I mainly ask that question from a processor standpoint (1.4 versus the 1.86 in the 13") 2GB versus 4GB RAM? Again, this would be used very casually other than learning programming on Xcode. Before the Airs were released I was considering a base 13" pro. The only benefit I see in the 13" pro at this point is a backlit keyboard and cheaper than the 13" air. (Apple Store has the 13" pro refurb for $1020 right now) Any input is much appreciated!