Currently I have a site that is using Google Checkout's mini cart system and I like it a lot, however, I'm wondering if there is a more professional way of doing it, while still keeping it simple.
I've looked into an authorize.net account, but I need to find a way to handle the mini shopping cart before heading off to process the order.
Are there any good open source mini shopping carts that are not linked with a merchant service?
Went with Google Checkout, just wanted to close this question.