i did this before also. in theory you have to develop both the strength of your legs, but more importantly, what's called your 'fast-twitch' muscle fibers. you develop leg strength with weights, and fast-twitch muscle fibers with jumping exercises like plyometrics, playing weights and jumping drills.

imo weights will not mess up your knees as long as you do the proper stretching before exercising, and make sure you use the weights on your belt or a vest, instead of the ankles. oh, and make sure you don't blow an ACL or something :hihihi:

i never was able to get up that high though - i'm 6 feet tall and at best i could dunk with one hand. part of it is genetics i think...i could leg press 500 lbs, did 30 minutes of plyos a day and still couldn't really throw it down, while my black teammates who were as tall as me could windmill dunk.

pero wala naman sa dunking yan - at my height i focused on being the best ballhandler on my city league team, and was content to share in the spotlight by dishing to my teammates who could dunk i also worked hard on the amateur 3-pointer....after all, a dunk is still only worth two points ;)