ok, well since i have an N73, i can def help you out
N73, aint cheap to start with, gotta need 850mhz for N.A., few N series have 850mhz, N80, N75, N73, N95, though N73 is not feature rich as other phones, and still around the $400 range, u might want to check out any decent S60 2nd Ed phone...