If you lived in the good old UK you would have no choice; all our saws have
short arbours so that we can not use dado blades. Apparently our Health and
Safety Executive believes we can't be trusted with them!
Routers work great but better still with a jig; using guide bushes and
different size blades you can get just about any width exactly.
It still doesn't make me feel any less jealous when I see Norm Abram making
a dado in abot a quarter the time it takes me!
Barry Uk