There are a couple of cheap ones out on download.com try different keywords as there are many different types out there.
There are some paper ones here and here that could easily be put into a spreadsheet or an Access database.
I created a spreadsheet so I could keep track of the parts bought, parts sold, and tools bought as I'm building the racer. This way I'll know how much I've put in, how much I've sold off, and how many tools I had to buy to build it. It would probably take about 15 minutes to build it in Excel... and about an hour in Access - that's with creating the pretty forms in Access.
RJ