I hear ya - I know there was a free one (the name of the product escapes me now) that I used a couple years back but it generated mostly random data of a certain type. For example you could generate a bunch of GUIDs if you wanted or dates, or strings....one neat feature was that you could also use an input file to generate the data so I would use a list of names, addresses, etc. as well.
If I remember the name or find an old copy of it I'll pass the info along.