A quote from a brilliant guy I know as KgB.
"I hope to God one of you f***ers brought a Phoenix Down!"
The man blew my mind with that one. Personally, it depends on the people in the room. As a joke I'd probably say:
"What are you people doing in my room!" (Abe Simpson)
OR
"I hope I saved up enough soul insurance." (Moral Orel)
If I knew they were my last words I like to think it would be something more natural.
"Be happy for me. My pain is over."
That works for me.