Reply to Which Macbook Pro for Traktor Pro 2 + Maschine

Looking to buy a Macbook Pro. I currently have a 2.4 C2D MBP with 2gb ram which runs traktor really well using 4 decks and fx usage. Want to add Maschine in sync with Traktor on a single MBP.
My current MBP heats up quite a bit and is showing age.
Which one of the current MBP's would u consider powerful enough for these 2 programs running together. Whats the least i could comfortably get away with if this was gonna be my main gigging machine, not for heavy studio use.

Thanks
F