"Barring a miracle, we don't have a chance to win back the Senate for at least six years. Even then it will be very tough."
You are way overly pessimistic.
LA politics has flipped due to katrina, and the Democrats have lost more votes than Landreiu won by in the last go around.
Expect that to be a better than 50/50 pickup.
MT is 50/50 and SD and Ark are close to that too, especially in Presidential year. The Senate shift this year guarantees we have a better campaign next time.
I'd say the over/under for the GOP in 2008 is a +2. We defend a lot of seats, but like the Dems this year, we are likely to not lost any of them, because the minority status will give us some issues to run on as Democrats overreach.
The Dems will also come hard after Coleman, Sununu and Gordon Smith (among others) as well. I think we are on the defensive again in '08.