Multiple midi expression pedals?

[Stuart Wyatt <loopersdelight@swyatt.com>]

I'm looking for a solution that will give me up to 8 midi assignable 
expression pedals, so that I can control track volumes individually on 
Live and Mobius. I've been doing a fair amount of looking, and haven't 
come across anything suitable so far.

Does a piece of equipment exist that will allow this?

- Stuart Wyatt  http://swyatt.com