Yep Jim, that's exactly what i planned as well. Mount the rad/res/pump/fans/noisy cooling stuff on a little wheel cart, and use long steel-braided hoses with quick disconnects.
The cart has wheels so it can be moved fairly easily
(to LAN parties for example...) so make sure you've got quick disconnects on both your PC *and* the cart. And bring shorter hoses to LAN parties. Heh.