Midi loop triggering

I'm tending to write in Reason at the moment, and I'm looking at how to start breaking it all down for live performance.
What I think I need is to break my programming down into midi loops for each instrument which I can trigger/switch between to mix up the bits of my tunes so I'm not just pressing play in the sequencer.
I remember Orbital saying in a documentary they do something like this using hardware looping boxes of some sort, but does anyone know of a software solution that doesn't involve me having to write MAX doodads?

[Macc]

Not quite sure if I am understanding you, but maybe Ableton 4 will do it.... ReWire compatible and all that. Not quite sure how you mean though.

Ableton seems like the thing you want to check out yeah if i understand you correctly...

[subvert]

speak to bobule and get him to show you ableton mate

Ahh now I had a look at Ableton already and thought it was just for Audio loops. Maybe I should RTFM a little more closely

Cheers.