I'll keep this simple and hope someone can help. I'm purchasing a Mac Pro this year. I doubt I'll be able to afford the new model that come out and I know the pricing structure that companies offer when upgrading the old towers so don't need help there. What I'd love to know is.. If it were you, would you buy the either the following for writing music in Logic Pro. I'll be using many VI instruments. 8 Core 3.0ghz 12 core 2.4ghz These would be same price hence my trepidation since it's the old cores vs processor question. Everything else, Ram e.t.c would be the same. It's the processor I want to know about. Any advice, or experiences much appreciated.