I don't mind going grey at all since it looks somewhat dignified and offsets my babyface. (Incidentally, I'm going for the 'overweight George Clooney' in my overall appearance.)
No, the only hair related problem I have are the hairs that started growing in places where I didn't used to have hair and where I don't need and don't want any. What do I need hairs on my earlobes for? Go home Mother Nature, you are drunk!