I've been working with an experimental sampler, the Torso S4. At home it's part of a larger setup, but live I can probably get away with using just that, and a Quilter pre-amp/DI thingy for added gain/dirt which the S4 is lacking. The preamp also has an FX loop for a pedal or two if needed. And the sampler has two independent inputs for contact mics, tape players etc.