Now, thanks to a Japanese company called Cyberdyne, you can rent your very own powered exoskeleton from as little as $1,000 a month. The company will be producing up to 500 of the things before the year's out, so don't be surprised if you start seeing people leaping from building to building and chucking cars around. Okay, so it probably won't be quite that cool, but a 2-10 times increase in strength is still pretty damn cool. Personally, though, I'm waiting until they can graft some kind of synthetic muscle tissue straight onto my skeleton (which will be made of Titanium and carbon nanotubes).

EDIT: More info available here.