I have a certain experience on static sites but never used WP, I'm a perfect newbie.
I want to create a site with the following features:
Catalog and shopping cart
I've seen many plugins for each of these functionalities but I don't know until which extent those plugins are compatible to work together.
I also wonder about the compatibility between plugins and themes, can they work together even if they come from different sources? What are the limitations?
Finally any suggestion about extensions useful for my project will be welcomed.