ill do you one better Wes.
http://www.oscommerce.com/ FREE
you have to update your current website anyway. This isnt any more time consuming or difficult.
In fact it could be easier as you can import a whole spreadsheet full of parts at the same time.
jeez everyone. I didnt think "gramps" was disparaging. I call old people that all the time. You are old. lol sorry for the offense for those with thinner skin.