Booking an Economy + fare on the web...no status, but member of Executive Club. When and how do I select a seat....is it only when I check in? Going from IAD/LHR and return...would not book the fare if I ended up with a middle seat and knew it before I paid. Luv UAL and AA where seats can be selected before you hit "Purchase". Since this is my first international flight with BA, I am trying to find my way. Any assistance will be considered a Christmas gift and greatly appreciated...and I'll buy a "pint" if I see you in London!