Well, Im surprised you havent gotten this yet.
Take Surge or its equivalent during and after your workout.
To minimize fat gain-
-dont eat WAY over your maintenance
-do some cardio sessions if you feel you are getting some flab
-Time your CHO intake correctly (i.e. morning and PWO)
Personally, I dont dig MuscleMilk too much. The lipid profile isnt all that great, even though they claim it is. If I were you, take the muscle milk before bed because its loaded with Micellar Casein.