Buy.com has the Belkin Sandisk Sansa Charging Kit for $6.99 with free shipping.
--Powers your c200, e200, View, or Connect player through an AC wall outlet (100V-240V), car cigarette lighter, or powered USB port
--Connects, powers, and syncs through any powered USB port; Includes 30-pin USB cable; Charges your Sansa player from your car's cigarette-lighter port