We now support the ability to choose different templates on different pages in addition to the ability to choose a default template for the entire store.
To apply a different template to a particular page go to the page edit screen, ie
Choose the edit link for the page to change
Under the Use Template field choose the template to apply for that page.
The default selection is the active template
Select Save to save your changes
The page will now use the selected template. Please note that if a template is in use for any pages it cannot be deleted.