most dp's i know own no gear except a light meter, and if they're the geeky type maybe an hv2o or nokia video phone. i'm an exception owning a d90 as well as both 16 and super 8 cameras, and i hardly ever use them on paid gigs either.
/matt
Most DP's I know are the same way.... or WERE the same way. This isn't last decade, though, and it's much more cost-effective to own your own digital gear as a DP if you shoot digital.
It used to be just a light meter, now they can justify the expenses of lenses etc if they shoot with them enough and also are able to return investment.
It's a different time, man.