Hi, thinking on buying an 11" MBA. Should I purchase the 2012 or 2011 model? Is there that much difference between the 2011/2012 model or no? Will there be any significant benefits with the difference on buying the 2012 model? I mostly use my computer for web browing; Photoshop; apps etc. Apple 11 inch MacBook Air (Dual-Core i5,1.6GHz,2GB,64GB Flash,HD Graphics) I want something more portable than my 13" MBP. Should I wait for Haswell or should I buy now? I can get a 2011" Air for £724.00 - is this a good buy? Cheers.