Hi Garrison
Welcome! I spent some time in Denver, a lovely part of the world!
What you are asking is possible indeed. It depends how you intend accepting payments (Credit Cards, PayPal, etc.). The easiest method would be to start with a template that has a ‘shopping cart’ built in. From the sound of things JA Mesolite would be a good starting point for you.
You can see the demo here:
http://www.joomlart.com/templates_demo.php?template=ja_mesolite
Remember, the template is just a start, you can customise it to any extent afterwards, but Mesolite will give you an instant ‘Online’ store for your sports goods.
Good Luck
Chris
