Not huge, but Gris and Sara discuss the case, specifically the motivation for a murder, infidelity. And i just think it's interesting that the two of them can just work through a case and talk about this. In the past, it scared Grissom that Sara might leave him for someone younger, etc, if he ever got together with her. I think, for him to take the leap to be with her, he had to realize that wasn't going to happen, and it's just refreshing. Warrick spends so much time suspicious of his wife, but Grissom and Sara have this amazing trust. Yay.