Wow, how's this for breaking news... Johnnie Walker has just announced all of 30 seconds ago that he's leaving the Drivetime slot on Radio 2 at the end of March in order to start presenting a more spiritual show on Sundays, and do more filling in for Wogan in the mornings. Take your bets now for his replacement - I have Maconie in the clubhouse as leader, Richard Allinson as next favourite, Noel Edmonds has to be up there, and on the outside John Inverdale and Alex Lester. (And on the very outside, Mr Williams, who is keen to introduce organic housing to a broader audience...)