I recently installed a plugin called jigoshop and i love it so far.
The only issues im encountering is.. the template pages. The plugin auto-creates a page for it's product listing. It's not allowing me to switch templates... Its stuck with default sidebar template.
I wanted to choose "no sidebars" template page but the option is not there. Other normal pages are fine just not the 'product' page that jigoshop created.