There are a couple ways you could do it, probably the easiest method without writing a custom hook or a bunch of conditionals, is to create a Product Class. That'll allow you to create templates for each class .. if I'm remembering correctly. Pretty sure the answer is yes, though

EDIT: Now I remember. In your store product settings you can choose node types to assign as a product; so one trick would be to create a node type for whatever product you want to look differently and then create a new template for that product.

I know there are a couple other ways to do it that involve a bit more time and code but, this should steer you in the right direction.