I'm still having issues with my 27" iMac. Took Delivery Replaced Whole machine Replaced screen on second machine Second Replacement screen for the second machine is coming tomorrow or friday. If that one isnt ok, i think im going to get a mac pro. But, my delihma comes down to the monitor. For better or worse im used to 2560x1440 but to get that kind of res i need a 30" because the 27" standard res seems to be ~1900x1080. What do you guys use?