Hello, I have a MBP early 2011 with 16GB of ram and a Sandisk 256GB SSD ExtremeIII + my 750GB in the optical bay. What should I expect by upgrading my machine with a rMBP? It would be a 16GB ram of course and I am thinking to upgrade the CPU to a 2.7 instead of a 2.4 for 100$ I do a bit of picture editing with Pixelmator, using Aperture a lot to process my Nikon RAW files (nikon Capture NX2 as well). I also Play a lot of World of Warcraft when kids are sleeping! I know wow is now retina but it doesnt matter to me since my MBP is connected to my LED Cinema Display (non thunderbold). Should I see a speed bump enough to justify the money? Or wait 2-3 years until Apple release the new MBP with Carbon fiber casing?