Quinnipiac takes a look at the Florida races in 2006. In the Senate contest, on the subject of approval/disapproval, Dem Bill Nelson looks pretty strong, with a 50/17 ratio (compare this to a 44/23 ratio for Mel Martinez), but his re-elect numbers are so-so, 37-37-26 (though aren't they all usually this time of the cycle) say re-elect/someone else/no answer. As for the GOP nomination, Harris (who launched a Press Release content, without comments "Blog" on her House site) says she's "six months away" from her announcement, I bet she's going to run:

                  Republican

Harris            37% 
Gallagher         20 
Crist             14
Jennings          11 
Webster            3 
DK/NA             15 

In fact, Harris right now looks to have the Republican Senate nomination there for the taking, as Jennings and Gallagher are spoken of more as Republican Governor contenders than Senate contenders.

In the race for the nominations to run for Gov, Castor still leads Chiles and Davis for the Democratic nod, 36-29-10 among Democrats, and 30-25-8 overall, but it's not a runaway. Among Republicans, Crist barely leads Gallagher, and Jennings is further back, 35-32-16 among Republicans, and 30-27-14 overall.