What's that one indispensable piece of gear in your collection ?

[human aspic]

for me it all depends on the project.

one of them relies pretty strongly on an octatrack
another on my 4track
another on contact mics and a soundwave breakdown

sometimes i use all of them together.

[U235]

My Akai MPC5000 Very good sampler, excellent sequencer and effective synthesizer for Power Electronics
I only need a computer to convert its wav in mp3