I have fallen in love with bitcoin, and wanted to create a new shopping cart option for people looking to sell online using BTC. It is also integrated with google checkout as an alternative.
The suite calculates shipping prices via Fedex, and calculates the smallest size box needed for a given amount of interior boxes.
This software is totally free, and I just ask for a small percentage of your bitcoin sales as a donation.
Bitcoincart deploys to Google's Excellent AppEngine infrastructure. If you are not familiar with Appengine, it is very easy to setup and use... Also it is free for low traffic sites. If you need a hand getting it set up, get in touch! email@example.com
Grab the code here: Bitcoincart on github