Our "deal" is that if I'd have to have a c-section with #2 it's me getting the TL--if I have a vaginal delivery--it's him.
I talked to my OB about this and he said since I had a vaginal delivery with #1 any c-section with #2 would most likely be an emergency situation and most insurance companies require 30 days written notice, which I obviously wouldn't be able to give in an emergency c-section situation. That's something you might want to check into on the insurance side of things.
That being said, we've decided that after this baby is born DH will probably go in for a vasectomy, but since he's more adamant than I am about this being our last child, it's up to him to follow up on it
I have had 2 friends who had TL's following their c-sections, as well as a couple others who have had it done at a different time. They've all been happy with the results and haven't had side effects. (I also know one friend who chose not to have it done during her last c-section because her DH was going to get a vasectomy and 2 years later he still hasn't gotten around to it, so she's kicking herself for not taking matters into her own hands when she had the opportunity)