I've been reading a few threads on the F59PHI locomotives - Isaac was developing one but I can't find where it was released. Here are two of the threads I was reading:
http://forums.auran.com/trainz/showthread.php?t=4166&highlight=f59phi
http://forums.auran.com/trainz/showthread.php?t=22559&highlight=f59phi
http://forums.auran.com/trainz/showthread.php?t=4166&highlight=f59phi
http://forums.auran.com/trainz/showthread.php?t=22559&highlight=f59phi