In 2006, the outside number Senate Dems could realistically pick up was 10 seats. They got 10 seats, by the skin of their teeth. I recall Montana and Virginia being particularly close. This time, it's much the same deal. I don't expect they'll get 10 seats too, but I could believe they'd get 7-8.

The race that could prove to be the most fun is Georgia. Bob Barr from Georgia is on the ticket, and the Democrat running against Chambliss is strong. Due to Georgia law, the winner needs 50%+1, not just a plurality. Otherwise, there's a runoff in December, which would likely be epic.