[mostapha]

You can use your MPC to control things. Just use it the way you always did and pretend PT is a tape machine.

That might make the transition easier. If you want, you can also record MIDI from the MPC into PT for later editing if you decide you like doing it that way.

Alternatively, you could use something like Maschine or the MPC Renaissance (when it actually comes out)…both of which are software/controllers that give you a workflow more like you're used to with 16 stereo channels into PT and MIDI output to control other synths (whether soft or hard).

Personally, I use Maschine that way. Maschine plays samples and either outputs MIDI to soft synths hosted in PT or hosts synths itself and outputs audio to separate audio tracks in PT. Working that way makes the most sense to me, and it seems like doing something similar might be for you.