Republican still ahead in Illinois Gubernatorial Race

We will see if this continues after Blagojevich's large advertising buy that I mentioned earlier:

In the race for Illinois Governor, Republican State Treasurer Judy Baar Topinka now leads Democratic Governor Rod R. Blagojevich 44% to 38%. In March, Topinka led 43% to 41%.
Topinka has now led in three of the four polls we have conducted of the race, albeit modestly for the most part. Our three-poll rolling average continues to show a tight race, with Topinka barely ahead 41%-40%. However, over the course of those three surveys, Topinka has gained ground each time.
The latest Rasmussen Reports survey of the contest was conducted April 18, a day after voters learned of a former Republican Governor's conviction on corruption charges. Blagojevich's administration is also being investigated for corruption, which the Topinka campaign has been eager to point out.
The Blagojevich campaign, for its part, has stressed Topinka's past service under the convicted governor, from whom she has sought to distance herself.

Polls on many other races can be found here. Among races that would represent a change in party control there are New Jersey Senate: Kean (R) 43% Menendez (D) 36% and Maryland Governor: O'Malley (D) by 9.