A product called MYOB- Mind Your Own Business, may work for you. We
are Mac based and have used it for several years now. It is great
for building product and keeping track of inventory. Inventory is
connected to invoicing and purchases, so once you buy or sell
product, it keeps track of your inventory level pretty seamlessly. It
produces pretty nice reports for most all aspects of the business
side of things too, and that has been helpful for us. We are using
the version called Account Edge.
Setting everything up was tedious and a bit difficult- I'm not at
all accounting minded, so I did need an occasional guiding hand from
a bookkeeper friend of mine, but I have very few problems with it now
that we're set up.
I checked them out on the web- http://www.myob.com/ and see if this
might work for you.
david lee jeweler
Mason City, Iowa