do any of the open source ecommerce packages integrate shipping rates?

[yoderfarms]

do any of the open source ecommerce packages integrate shipping rates? in other words, is there a plugin for oscommerce or zen cart to interact with the usps.com and fedex.com API's in order to get real-time shipping rates based on the customers zip code and yours?

i.e. customer lives in zip 44444 i ship from zip 90210 and they have bought 5 lbs of merchandise and i add 20% to the weight for packaging so i want the customer to be able to see (and choose from) the fedex ground and 2nd day rates and usps first class, priority and parcel post rates on a 6 lb package from 44444 to 90210.

can any of the cheap ecommerce packages do this?

[FalseDawn]

I'm sure there's oscommerce "modules" to do just that, but I'm convinced flat rate shipping is the way forward - just mark up heavier goods to compensate.
As a shopper, there is no bigger turn-off than not knowing shipping costs in advance, then finding out shipping on a $50 purchase is $15.
That's just me, though.

[joethejoe]

Yes. Oscommerce interfaces with UPS and FEDEX.
I assume Zen-Cart does as well.

The customer can see what their freight will be prior to checkout or commitment.