Here's a little juicy unconfirmed rumour that I've just heard. Apparently there is a YouGov poll due that will show the Tories with a 44% to 26% lead of Labour just seven days before polling in the local elections and the London Mayoral race.
As I say, this is just unconfirmed chitter chatter from the halls of power where the hacks talk amongst themselves. If it's true that would be an 18 point lead over Labour, and would certainly put (a) the wind in Cameron's and Boris's sails, and (b) give Brown yet another blow to his credibility and authority as a leader.
Update 20:00: This has now been confirmed as Telegraph YouGov poll just before 7pm.