Laura Ingraham has a handy-dandy list of squishy senators who may change their cloture votes and let the giant immigration monstrosity through the Senate. You can give 'em all a call.
A good Michelle Malkin/Laura Ingraham discussion of the new rise of the bill, here.
Here's another list, from Eagle Forum:
Brownback, Burr, Chambliss, Coleman, Collins, Corker, Cornyn, Craig, Domenici, Ensign, Gregg, Hutchison, Isakson, Kyl, Lott, McConnell, Snowe, Warner, Webb