Fellas,
Make sure you have as much info as possible before deciding. Seems you can say send me over to the dark side, and then still pull out of the deal before it all happens.
Might be worth your while to ring your Fleet manager, Long range Ed or someone and asking them if A330s are still being removed from the fleet next year or not. Might be an idea to find out how many if any are going, and the time frame , before completely ruling out the 777.
Good luck.
Don