Expression pedal for the Vortex

[Todd Pafford <todd@galen.dyn.ml.org>]

Hi all,

Can anyone recommend a good expression pedal to use with the Vortex?  How
much do these things normally go for and where would be a good place to
find one?

Thanks :)

---
"If the doors of perception were cleansed everything would appear
 to man as it is, infinite."  -- William Blake

Todd Pafford   galen@erols.com