Casey,
I know what you're talking about. My legs have always been my strong point. I played football and track (shotput, and 400m). I feel like my ass is way too big for my upper body. In high school I was squating like 450lbs, and pressing 800lbs and I only weighed about 150. I'm trying to catch up with my upper body now, but I still do legs at least once per week.