I currently use a new (6 months) MacBook Pro w/ Leopard (10.5.2) along side an M-Box Micro and Pro Tools 7.4 cs2. Though they may not be officially certified, I can edit with no problems. I got two hours of solid editing time on a flight from DC to LA. The only drawback to the M-Box Micro is it's width, which can block other ports on your computer. Digidesign supplies a real cheap 3" USB extender cable. May I recommend buying two , one for your M-Box Micro, and another for your iLok. Mike