I saw some 27 inch iMac models at the apple store and I pretty much drooled all over the floor. I really would like one However. I already have a perfectly good Macbook Air 2011 13 inch 128 ssd that I use for school. I wouldn't be able to buy an iMac until late march early april, but by then the new models should be out or close to coming out right? Would you think they are worth it?