Intresting are there more players for whom Slam/Masters was to be the last trophy or not? Pete and Marat are first whom I can recall. I don`t think there are many such players either.
Chesknonov, Aguilera, Muster, Ivanisevic, Pernfors, Medvedev, Carretero (first and last), Korda, Costa, Krajicek, Piolone, Portas (first and last), Mantilla, Henman, and Ljubicic. That's all I got