"Getting" bin Laden is counter-productive at this point. You either kill him and make him a martyr to inspire a thousand other gomers. Or you capture him and put him on trial...and make him a martyr to inspire a thousand other gomers. Or you keep him running from cave to cave in the Hindu Kush and NWFP, and he's marginalized.
Or best yet, you capture him, kill him, leave his body to rot in a cave in the Hindu Kush, and the whole story never sees the light of day. Never happen...they'll shout it from the rooftops, of course. But the world is better off never hearing of it.