I use a Systematic dado set ($$$) on a Powermatic 66 ($$$) and also have a Canadian made Leigh Dovetail Jig that does box joints also. It's a bit of a setup, the goal is a square bottom cut not done with most table saw blades. Of course a chisel and mallet can do wonders if you are skilled enough. I prefer the tool route myself.
Have you hear of a Rotoplaner? I am luck to have one, it was made by Delta.