Another question re train travel to Cheltenham.
Thanks to a number of people's kind assistance, I've found some schedules from Gatwick to Cheltenham to that will work... am considering the Gatwick / Victoria / Paddington / Swindon / Cheltenham route (transferring that many times will keep me alert while severely jet-lagged -- ha). :-)
I have one more question -- is it important to pre-purchasing tickets? Maybe for the Paddington / Swindon / Cheltenham part of the journey? (I am assuming the Tube part of the journey can just be purchased as I get on). Or is it an integrated system - one ticket for all.