JD - the motor and the regulator are different items - the motor is er, the motor, and the regulator is the geared / jointed / whatevered mechanism than converts the rotary movement of a motor into the up / down movement of a window.
However, I'm having drivers window problems too - but wondered if it was the 'one touch' relay getting worn? The window start to open, then slows, then clicks off, sometimes with repeated clicking of the relay until I press the window button again. I thought it might be burnt out contacts on the relay. Any more guesses?