I just installed a small patio/landing for our deck steps and had to cut
some pavers in half. I used an abrasive blade on my saw, and had my wife
standing next to me with the garden hose nozzle set on "trickle" wetting
down the cut as I did it. This kept the dust down to a minimum and seemed
to help keep the blade running smoothly.

Of course you don't want to get the electrical part of the saw wet -- just
the blade area.

-Tim