Matt Asked: Best free or cheap inventory control software?

We have started a small business selling arts and crafts and woodworking.I am looking for an open source cheap or free inventory software.Ideally I am looking for something that will let us input all of our raw supplies and create products out of those supplies.I am looking for it to then calculate the cost of the product based on all the raw materials used.I have found a website online that does this, but it is in beta.I rather stay away from websites that may just disappear.Any suggestions on what to look at would be appreciated.