i wouldn't take cratine. once you stop working out, all it turn into is water and it makes your skin look flabby.

i take muscle milk. if you want to gain, its all about your caloric intake. you want to be at around 4-6k calories a day. and eat the most before going to bed. when you sleep, it takes the least amount of calories and energy, so the nutrients can go towards repairing the body. also when bulking, try to do workouts that work out a group of muscles. you only do isolation workouts when you are trying to make that specific muscle cut and look ripped.
i try to stay away from any substance, aside from muscle milk.
oh and be sure to make a multi- vitamin. will all the food and working out you are doing, it is overing working the body, so take vitamins to regulate the function of the body.
in one month- muscle milk and eating lots of chicken breast- i gained 5 lbs. of mass. and i could already tell i was getting bigger.