Mac Pro 2.66ghz Quad-core 3gb ram osx 10.6.2 - Logic studio 9.0.2,Ableton Live 8 (8.1.3)suite Macbook 2.2ghz,4gb ram, mac osx 10.6.3 - Logic express8 8.0.2, Logic studio 9.0.2, Ableton Live 8 (8.1.3) suite Monitor MAudio bx8 - bx5 -bx10| MAudio fast track