TarantulasUS.com - A great idea for a tip resistant water dish that can be used for tarantulas.
Land/Water Tarantula Vivarium
Arachnoboards - A member constructs a great looking land and water vivarium for their Hysterocrates gigas tarantulas, one of which dives into the water for fish, but others disagree on how appropriate the set up is for a burrowing species of tarantula. See lots of photos of the vivarium, including some of the tarantula diving for fish.@ Arachnoboards