I've read the "Screwy ticket prices" thread, and the general rules seem to be (1) if you get a decent price grab it, (2) it's probably best to book through the airline site
That said, I want to go LHR-Zurich a week before the Olympics. I'm thinking that Buy Now makes even more sense.
Oh, and RyanAir and its ilk are not an option for us.
Is there anything else I should know before acting?