Jeff,
Did your DNA link you to John Gregg/Gragg? I have quite a bit of information on the Gregg/Gragg lineage (mainly as it is applicable to my lineage).
Anyway, I have just done my DNA through the Macgregor Project (Familytree), but I still have a few weeks to wait on the results. I also had my DNA tested through ancestry, but theirs isn't as in-depth as Familytree's (I had the Y-DNA67 test). The ancestry test provides general information (My largest Ethnicity estimate is scotts-irish)