IMHO, the only thing keeping the Republicans from gaining seats in the Senate are Santorum and Dewine.
I personally believe that Talent, Burns, Corker, Allen, and Kyl will all win.
I also believe that Steele will pull out a victory.
Kean Jr has a slim shot at winning.
Based on this, the Republicans would still have 54-55 seats when the elections were over.
it depends who you ask.
what is clear now is that a swing of +- 3 seats are going to come down to races with a 2% margin of victory.
I still think our only chance of a flip in with Steele. On all the others, we have to defend seats we currently have. Santorum, DeWine, Talent, Chaffee, Burns, Allen. We are unlikely to win all 6 of those, defending 4 of those 6 is a decent bet.