Here's a few good ones!
I'd mentioned Bill Murray's quip - here it is (just found it on E!):
I would thank the people at Universal and Focus, but there's so many people trying to take credit for this I wouldn't know where to begin.
--Bill Murray, making the kind of funny, biting comment really successful actors can get away with
And, from Ricky Gervais of The Office, a couple of good comments (hope you enjoy them, Jules, although you've probably already seen them on British TV...):
[upon going up to the stage to accept his second award]: "Two bookends, excellent. You need the set. Obviously, I haven't prepared a speech."
[in reference to his problem in remembering to thank the foreign press that puts on the Golden Globes]: "I'm not from these parts. I'm from a little place called England. We used to run the world before you."