I've been stuck running Logic 8 on my decrepit G5 for a long time, but I'm finally on the verge of upgrading to an 8-core. What's the consensus on the most efficient and stable system setup? I've already heard recommendations to stick with Snow Leopard over Lion. Thoughts on that? And definitely 64 bit over 32 bit, regardless of OS? I do run a lot of third-party orchestral stuff, so RAM access and speed is critical. Thanks for any insight.