34 yr old male , wanting to gain muscle mass. Have been working out for several years, weights with cardio(off/0n). My question is what would be some good starts in supps for what I want to achieve(mass) ? I know protein and creatine and lots of food but is there anything else I should take. I have noticed I hit a plateau during my weight training I have not been able to by pass it? Love this site , thanks everyone..................Roy