Design Studio - flash tshirt designing with Shopping cart

We are looking for a Design Studio system similar to [login to view URL] , [login to view URL], to allow our online customers design and purchase variety of items such as t-shirts, mugs, mouse pads, keepsake boxes….. User friendly and intuitive design is very important. We like to see a complete system with shopping cart system. This is a very urgent project and we appreciate your respond with complete information and examples of your projects in operation. Thank you!