“I have a few rather standard MIDI controllers as well. The Evolution UC-33 (now discontinued) sort of acts as my primary control point, with knobs and sliders representing an array of volume, EQ, and effect controls mapped to my software.
“Depending on the song the same controls may completely change their meaning - a slider might control a vocal loop group in one song and a filter cutoff for an a soft-synth in the next.
“I also use an Alesis Controlpad USB drumpad, which is generally a sample trigger device. Sometimes the assignments of the pads become quite convoluted, however, for one pad might mute a group of FX sends while another would trigger some random chord samples.
“Additionally, I use an Axiom 25 key MIDI keyboard, and generally use it for rather standard things, like playing keyboard sounds or triggering drum sounds with the included finger drumpads.”