I am assuming this is for live work. Why not kick it old school and play bass synth w your feet? :)
I use a Roland FC200 going MIDI out to a Dave Smith MOPHO. Killer low bass that gets the job done without interfering w the guitar work. Roland has a rather expensive bass pedal like the old Taurus bass pedals. You will still need an external sound module, though.
Alternatively, add a Roland GK pickup to your guitar or a MIDI pickup and use an external sound module set for a bass sound going into its own amp.
Penultimately, you can hunt down a real Taurus ...
And ultimately ... Find a bass player :)
Hey Ben,
Yeah, you are quite right, its for live work. I /was/ also thinking about using some MIDI bass pedals like Rush.
You probably know Moog do something called a Minitaur which is a desktop sound module with the Taurus synth inside. It's relatively affordable and could be used with some MIDI bass pedals. Also, not spending any money at all, I have already a few synths that could be used, or perhaps a little sampler.
I saw the expensive Roland full-business bass pedals. As you say, they are.. expensive, and actually quite bulky.
Had no idea though that the FC200 allows you to transmit note data. This is a great bit of information. Ought to be cheaper and more transportable.
I must say this forum remains a great source of knowledge, already two excellent tips.