Hello All: I'm new to the forum and I need help! I just phased out my 2009 MBP and got the new Macbook Air 1.7 i5 with 256gb. I also have an iMac (2011 21.5) for my main home computer and storage. It's the 2011 thunderbolt with 500gb hard drive. Here's what I'm thinking I could do. 1. Keep the iMac as my backup and home computer and I can always extend my desktop via thunderbolt from my MBA 2. Sell the iMac, get a refurbished Apple Display (27 inch) and use a mac Mini. 3. Sell the iMac, get a refurbished Apple Display (27 inch) and just use the MBA as my one and only computer. Any thoughts?