Welcome, Nadir.
Don't worry, there is plenty of time to train for PBP2011. SE Audaxes to January?
October: End of Summertime 100km from Stevenage, a great social event with >200 riders on the road.
November: Upper Thames 200km from Cholsey
December: South Bucks Winter Warmer 200km from Great Kingshill
January 2012: The Willy Warmer 200km, from Chalfont St Peter.
I'm planning on riding them all, one way or another, winter permitting, along of course, with The Poor Student.