I stumbled across this thing called the DNA Ancestry Project, and thought it looks really fascinating. Anyone ever tried anything like this?
My grandfather has done quite a bit of research into our family tree, and we've made it back several generations, but seem to have hit some walls that are holding us up from getting back further.
This company is taking the approach that we've all come from common ancestors in Africa, and by looking at our DNA, compared to the DNA of other people from different areas, we can learn a lot about where we come from as well as to whom we may be related.
It's a little pricey, but not beyond what can be afforded. I think it would be interesting to try.