I absolutely would NOT do it. There are too many chidlren in the world now who have no home. Also, even though they are having the baby, if it comes from my egg, I have a responsability to the child to make sure he/she has a good life and I don't want that repsonsability.
If your best friend asked you OR your partner to help you conceive a child, would you consider it? How do you think it would affect your friendship and your relationship?