Well, it's getting to be that time of year and I just happened upon this
interesting critter:

http://www.turbokool.com/

About $600, seems interesting.  Since it's an evaporative cooler it won't
work too well in humidity over 30%.

Looks like you can run it off of a solar panel so power consumption
shouldn't be a problem.  The website doesn't say how much water is uses, but
I'm sure it's not too much.

Only 16lbs, so it wouldn't be an issue for the Westy roof, although, you may
have to play some games in making it fit correctly.

Anyone out there had any experience with one of these?

Cheers,

Jeff