I agree.
I live in Phoenix and I listened to Mark Stevens last night (Sep 5).
He really sounds legitimate (bashes Kerry, Terreza, Ted Kennedy, and he talks very favorably about Guiliani, and such). But I think that the ads are too harsh and would be interpretted as rascist by some (even if they aren't).
Should have picked an issue other than racial politics. Reinforcing Kerry's poor voting record on national security and taxes would have been a better route (plus with better production of the ads)
Mark Stevens = Stephan Marks. The first time I listened to him.