After 3 1/2 years I’ve taken the plunge and upgraded my former 20″ iMac workstation to a new 27″ iMac.  Wow, what a difference the Intel Core i5 processor and and 8 gigs of RAM make when living in Photoshop and Lightroom compared to the previous Mac.  Considering how much time I spend looking at my production machine, I’m really liking the increase in screen real estate.  …and look how small my 19″ 2nd screen seems now compared to the main monitor.