I want to build a pretty simple website where I am only selling a couple things. The website will be for a book I'm self-publishing, and all I need is a way to sell a download of the book, in only 2 or 3 formats.

I've looked at websites like Moonfruit, and they do seem to have an ecommerce option, but I don't need a big shopping cart system, that would be overkill, since I'm just selling a download.

Is there a tool out there that could help me?