GuitarBizarre

It is, sadly, rather an expensive choice, however my personal keyboard is a Novation SL49 MKII. It has a bunch of controllers, interfaces with ableton very easily, but its primary advantage over most other Midi keyboards, is that it comes with automap.

What automap does, is it automatically detects what your DAW (Ableton) is doing, and provides you with realtime control of just about everything in it, from the keyboard. This is REALLY useful in ableton, because it can record as you play, whatever you change about what you're doing. Not just the midi notes themselves, but if you use one of the controllers to say, change the sound of a synthesizer in a cool way, then back again, you can RECORD that change live, rather than recording the notes and adding the data for the change afterwards, which is what you have to do with most other MIDI keyboards.

There *are* a number of cheaper options, but if the budget stretches to this, I couldn't think of a better choice.

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