Wordsmith is where its at. 3 strikes and the turn passes, none of this trying infinite different combos till something works malarky.
It also accepts better "dodgy" words as well. Like jew and wog. Not that I'd advocate their use of course, but they do score quite well.
WwF accepts WOG, just not JEW, NAZI or FAG
Strangely, whilst it doesn't allow JEW, its fine with YID.