2006 Mac Pro 2.66, 5 gigs of ram with 4 drives, an acer 24" screen.
Playing a 16 stereo audio tracks , 2 instances of Omnisphere, 2 instances of Superior Drummer 2, Synthogy, all littered with plugs.
CPU floating around 11% to 21%. Total ram being used shows 3,590 MB, 1521 unused, with my Tascam FW 1884 buffer setting @ 64 (low latency)... This is the original Mac Pro, I've been so happy to finally have a machine cover all my base's.

Wondering what SL and any Logic update would do to make this run any more efficient?
Guess if I had $4000 eating away at my wallet, I'd get the new machine...
Not yet though.
Later
Brian