Hi there!
I have helped a few demonstrators setup their "stores" and still have some in the works. But one that many people have liked is
www.sandimaciver.com. She has FOR SALE as an item in her sidebar which when clicked goes to a main store page. Then you can click on any of the thumbnails to see more about that given/specific kit and to pay for it. Her blog is a Typepad blog and uses "pages".
Many others love
www.andreawalford.com and her blog store style. Her blog is a WordPress blog and uses "pages" as well.
Best wishes!
Heather
Heather Wright-Porto
www.blogsbyheather.com
www.handstampedbyheather.com