Between now and Election Day, the Republicans will continue to trend up and the Democrats will continue to trend down. This is the inevitable result when people start to look at the positions held on both sides, and they realize the Republicans have legitimate policies on the War, National Security, Economic Growth and Entitlements, while the Democrats just have a lot of anti-Everything clap-trap.
The know-nothings will continue to believe the Democrats are way ahead, because they won't read or believe any evidence to the contrary. On November the 8th, they're going to be quite shocked at the Republican gains.
The Republicans will be at least Plus 2 in the Senate and Plus 4 in the House. Mark my words.
I personally think it will be a squeeker, but if the Mo Republican Party galvanizes the masses as they did in 2000 and 2004, then Talent will win easily.
I believe you might be right with one exception.
I sincerely hope that the Senate ends up with Chaffee losing, and that decreases your Senate expectation by 1. In my opinion, that would increase the Republican's power.