Try this link:

http://www.edirectory.co.uk/penrith_surv...&cid=55

That looks just about perfect for what I need. It's a little smaller than the one I'm using (22.5 cubic inches vs. 28.5) but aside from that it should work. Now to see if it's carried here in the States.

Thanks for the heads up.

Regards, VInce