My Situation is Im using an HP laptop Amd Turion 64x2 1.90ghz processor and 4gigs of ram. Im running pro tool mpowered 8 also reason 5 and record 1.5. i use reason 5 in live instance with 2 axiom 61 keyboards and the maudio fast track pro. for the most part it works ok, but when i use the abbey roads refill it starts to crap out. with pro tools i have no luck in even getting half way through the production. I want to upgrade to the MBP 15inch i7 with 8gigs of ram. anyone know how taxing will these applications be on the cpu on the MBP.