I just sold my 2008 Mac Pro. It was 8 core 2.8ghz. I need to replace it. What I replace it with MUST be faster at EVERYTHING. 12 core is not an option. Too expensive. I am considering: 2010 3.33 6 core or 2.4 8 core or 2009 2.66 octo I can afford any of these, which should I get. Mostly I need the speed for exporting from Imovie and Adobe Premiere. Wichever one will do these exports of 1080p fastest.