Sending people there:
Cryogenics - Freezing people until they get there then thawing them out: First of all, we haven't got the 'thawing them out' bit down-pat without them dying anyway. But even if we did get them there and thaw them out, as said, the gravitational field would be much stronger there, and it'd be quite troublesome at first thus making it quite possible we'd be wiped out before getting really established.
Breeding - A child raised in zero gravity would not be very strong, right? What about a few million years worth of evolution for zero gravity?