Shopping Cart for Frontpage 2003

I am looking for opinions on Shopping art software to interface with an
existing FrontPage web.

I'll be on a Windows Server with MS SQL 2000 for database support. I want a
system I can run on my own servers not one I have host through a 3rd party.

I'm most interested in good support rather than a "good deal".

I have seen a couple found at www.salescart.com and www.storefront.net

I'll have approx 10,000 items in the inventory database and will need a lot
of flexibility as to how I compute freight charges.

I will also want to interface with my credit card processor.

Thanks for any reviews or suggestions.

Stuart