[Fitness] How can I jump higher?

[MikeWaters]

My total fitness goal for this summer is to jump higher. Not cycling, not windsurfing. Jumping. My possibly unattainable goal is to dunk. I figure it's my last chance.

Things going against me: small hands, two-footed jumper. 5' 10".

When I was in better shape, I could grab the rim with both hands pretty easily. I could hit the rim probably a couple inches below the wrist (one hand).

So I figure I would need perhaps another 3 inches beyond that.

I'm playing basketball about 3 times per week, so I'm getting in better shape.

What are some things I can do to improve. i.e. what sort of weights, workout, etc.