In the gym many people are concerned with LOOKING big and strong but not BEING big and strong.
Lets look at some videos of some respectable professional powerlifters with amazing physiques:
Dan Greene, a GREAT power lifter
Stan the Rhino
Examples are abundant, lets overcome the association of strong = fat.
Your physique needs to be in line with your goals. Above are two lean, very powerful world record holders in the powerlifting world.