Try dropping Pandora an e-mail as she is already on the 737LHR.
To my knowledge currently about 6 planes rising to 12 over the next year. They'll all be 737-436's, ie BA spec 737's from new. Also I think the best 737's that BA have.
At some point, around 2004 I believe, the fleet will once again die and the BA737 will be no more at LHR, replaced by the Airbus.
From 2003 Manchester will re-equip with Microbuses, A318's.