Joe Sestak will beat Arlen Specter turncoat, pro war Dem in the primary and Giannoulias will beat Mark Kirk. I think PA and IL is leaning our way.
Specter has the support of the White House. I wouldn't count Sestak out, but Specter has the advantage.
In PA, polls show Toomey ahead of Sestak, and either ahead or tied with Specter. That sounds like a Republican victory. Illinois is just pure tossup.
The reason I count both as Republican pickups is that Obama's approval rating - and that of Democrats in general - looks unlikely to improve in 2010 (though I don't foresee 2009's 20% drop-off). Therefore, I think races which are currently close will probably go Republican come November.