Is it possible to set up shipping charges such that various ways of shipping can be charged based on 3-digit zip from/destination codes? Ideally what I'd like to do is offer shipping from the store location (zip: 123) and set up a charge for, say, $3.00, for ground 3-5 days, to zip 456, $4.00 for ground 3-5 days, to zip 567, $4.50 for ground 3-5 days to zip 569...etc.

My thought is that since I already have these shipping charges available to me electronically, I should be able to populate a shipping table somewhere in zencart to load zone/charge information at a 3-digit zip level.....

Any suggestions? Or is what I want to do too complicated for the shipping module in zencart? Thanks in advance -

MAS