C# Shopping Cart Software

I need a good shopping cart program that can easily be configured for multiple websites (Look & feel, etc..) I'm looking for someone who might already have something finished with full c# source code and is easy to maintain. The more features the better..But I'm mainly looking for the following: Unlimited categories/sub-categories.. SQL Server 2005 Images stored in database (preferred) Supports multiple shipping options Unlimited number of item specific options e.g. size, color etc. Items can belong to more than one category Customer login or quick checkout Customers maintained with standard asp.net membership system & roles. Support all methods of Paypal. Supports major credit card gateways such as [login to view URL] for accepting credit cards right on the website. Product Search Web administration for managing products... A way to upload a zip file of product images would be nice or a desktop management program that would manage the website products. Basically anything that enables product management to be easy! It would be nice if someone has something already made with a demo. Please send me info and complete feature list. I'm looking for full asp.net c# source code in case we need to make changes.