Hey peeps. So im making the jump in my studio to mac.. Ive been using macbook pros for personal use and some editing/mixing since, 2006. And up until now couldnt really afford to take my studio to the mac realm which ive wished to do for long time.. So now i have been looking online for a well priced 12 core, used or whatever, best ive found, was a 12 core unopened from june this year for $3500 pretty good i guess. still as my studio is not finished i should wait it out a little longer and see what other deals pop up... Now heres my question, i was debating 8 core or 12 core. And the 12 core won that debate for the future factor.. But now im looking to see what real performance difference lies between the 2.40 Ghz , the 2.66ghz and the 3.06ghz. Now i know the old if you have to ask blah blah, i dont need that answer lol. I doing music production, and mixing mostly in this particular studio, also there will be a little recording.. My sessions can get extensive with plugins and instruments, I just dont know how to weigh up these three options.. I mean is there a huge difference between the 3? noticeable in audio or more geared toward video? The price difference is pretty big... Is the basic 12 core such beast it be hard to make it stress? I just need a little help so i can make the appropriate changes to my budget.. Also another question, some people are telling me, they hear a new mac pro is on the cards, which is always the case anyways, right? But what i need to try figure out what will be so significant about the next gen ones that will make this purchase a regretful one? Thunderbolt maybe one factor? Will apple ever give an option to expand with a pcie card for thunderbolt compatibility with these current systems? Lastly, do you guys recommend any good site to keep an eye out for good priced machines? Apart from the obvious CL, Amazon, Ebay.. Thanks you!!