AbleCommerce Shopping Cart Software

I have a feature I want to implement and was wondering if I can get advice on the best approach to implement. Essentially, I want to have a list of books that complement each product I am selling. I will have a db table that has the ProductID and the ISBN(s), so there will have to be a simple query to get the book details for display and a web service call to pick up title, author, price, image, etc., from amazon et al. Any items purchased would be fulfilled through the bookseller(s) and I'd earn a commission from this.

I'm thinking a product template or conlib control, but having very little experience with the full AC capabilities, I thought I'd ask first before I go down a long road.

Provided that you are going to do some custom code making web service calls I guess you would need a conlib control. This control then can be used on product page.