I am thinking about getting a 27" iMac 2.7Ghz and using my friends Apple discount. Currently using the first gen macbook pro unibody 2.4 GHz duo. My main uses for the iMac will be Lightroom and Photoshop for photography editing and Adobe after affects or Final Cut pro for editing time lapse photography videos. Should I upgrade now or wait until the new refresh being that the current iMac's ae 1/2 through their cycle. I am guessing the new iMac's will just be a faster processor and graphics card.