Also. I think this is a Python thing, not Web2py. I'm at a loss for what data type I should use for currencies. I wasn't expecting to run into these type problems (I'm a relative newbie!).
if form.vars.shipping_amount > (form.vars.start_price * Decimal(0.2)):
File "/usr/lib/python2.6/decimal.py", line 649, in __new__
"First convert the float to a string")
TypeError: Cannot convert float to Decimal. First convert the float to a string
