I just bought a Camelbak, and was wondering this myself. (The instructions that came with the bag were, well, rather spare.) I got an expandable hanger for the bladder, and as for the tube, I unhooked the bite valve and unhooked the tube from the bladder, spun it round my head a few times to get rid of the excess water, and hung it up to dry. So far, so good.

On a realted question: my Camelbak initially had a plastic/soapy taste to it, which seems to have dissipated. Is that typical?

Thanks,

.....CLIFF