eLog - Electronic Logbook for Pilots 
I use eLog - Electronic Logbook for Pilots but I don't think that it has the feature for the sector pay.
Anyway, you could always suggest it to the guy who wrote the program as he is always open to new ideas/improvements and it will not be the first time that he introduces a new feature as a result of a good idea being pointed out to him.
Give it a try and you'll be happily surprised of this features packed program and if you don't like it... you loose nothing as it's FREE!!
