Upload & Sell: Off
After reading a lot of litteracy, it looks like the Imac 27 2.7 with sufficient RAM will be good for the next four years for any picture processing softwares like photoshop and lightroom.. The real difference will be for autocad or complex film processing, which won't be my case, at most some basic movie maker softwares..... Moreover, not sure why, but some lab tests give the 2.7 equivalent on most aspects with the 3.1.... The real difference being between the 2.7 and the 3.4, but once more, essentially for complex operations.... So I am now exciting and will keep the money for some backup tower (Drobo) as some people told me about... Thanks for all your answers guys, I really appreciated them..