I have a single Honeywell axial one (leads at each end) or a few Epcos radial ones (both leads at one end) which will need a firmware change but should be usable. Which do you need?
The Honeywell ones are about $1.50 at element14 (where I bought mine), the radial Epcos ones cost more: about $7 each.
I'm in Baranduda, so we can probably sort something out tomorrow if you like.