Coming from the I mental preparation for athletes area I found the book "In Pursuit of Excellence" ( http://books.google.com/books?id=VtzYIGXuo-gC&lpg=PP1... ) very good.

"The Mental Athlete" ( http://books.google.com/books?id=OVqMC9Zs3cAC&lpg=PP1... ) though seems to be closer to your intentions (I can't recommend it though as I haven't read it yet, but FWIW all books I read from this publisher turned out to be excellent and superficial skimming of it's google books page seems to confirm that).