Ableton is the second coming, the program is just ridiculously easy to use and easy to get to grips with and full of enough features that I'd eat it's dog for a tenner.
Still the latest versin has a few niggles in it for me, like in the arrange you can't just click to the move the start/loop bars any more, you have to drg ad drop which means if they are off the screen you have to go find thm which just an extra layer of tedium into proceedings.