I know that this isn't climbing specific, being having overall strength and fitness does help you in various outdoor activities. Who else seriously weight trains? What kind of routine are you currently doing? Do you modify or add any lifts to give yourself more "climbing strength"? I do a 4 day split with two days lower and two days upper body. I like to stick to compound movements like weighted chinups, Bench press, overhead press, rows, and dips for the upper body. Squats, deadlifts, stiff-legged deadlifts, and dynamic lunges for lower body.