Shopping cart interface suggestions

Hi Y'all,

I'm starting a new company that sells "Books on tape" type products. I'm not a dummy but I don't have any web building experience. I'd like to be able to sell my tapes and possibly have some available for immediate download after payment. I've been doing some research and there's companies like shoppingcartsplus.com that have integrated web building tools and hosting for newbies like me. Have any of you guys that sell online used a service like this before? If so, would you recommend them or another service that you've liked. Please keep in mind my lack of web experience.

Many thanks!
Joel

Another option are webhosts who set this up for you.