The Sensonic Professional Toothbrush by WaterPik is being sold at the Toothy Grins Store
If you like coupons, when you go to the above link, be sure to check for the store coupons. Hint: There is a link to a list of store coupons on the left hand nav bar near the bottom!
Studies have shown that using an electric toothbrush for most people gives superior plaque reduction over a manual brush. This is because many people do not brush for a full 2 minutes. Electrics have timers in them to help make sure you get the full two minutes.