I have an 11in C2D 1.4ghz 2gb of ram mba. Its clear that this machine is not running as fast as the newer ones. I am thinking about upgrading to a base level 2012 13in to speed things up a little bit. I received a very generous gift card to the Apple store over the holidays, so it would off set most of the costs. Looking at the benchmarks it seems like would see a pretty big jump in performance even with the base i5. Just wanted to get some thoughts from the community. Thanks.