Hey Peter,
I have no experience with water cooling CCD's.
I have however, cooled my CPU, NB, SB and (for a short while) my graphics card by water cooling, using a small radiator,reservoir( non cooled), fans and a pump.
It was a success and as you can appreciate the CPU pumps out a bit of heat ( as does the NB and GPU).
So I was just thinking you might be able to forgo the ice in the reservoir and just go the radiator type setup.....
These are only suggestions as I have not tried them myself......but I would if I would get into that side of things......
( BTW I do have spare radiators, copper blocks, pumps etc for sale .... oops sorry wrong forum......
)
Bartman