Regarding the chafing, if you find a running related web forum where chafing is a taboo subject, find a different forum as it is a very worthy discussion for many of us.
For the inner thighs I've found a generous dolup of Vaseline to be the best, even for 15+ mile runs. As for the nipples, I got tired of my shirts being stained from the Vaseline, so I've graduated to using Band-Aid "Clear Spots", and assuming you get them in well, they'll stay on for even the longest of runs (sure beats two vertical blood stripes running down the front of an otherwise white tee-shirt). 