Amazon has Black & Decker LI3000 3.6-Volt Lithium-Ion Cordless Screwdriver for $31.99 + free shipping.
Technical Details
* Compact screwdriver with small, lightwieght frame fits into small spaces other drivers can't
* Wall-mounted charger provides convenient, easy-to-access storage
* Delivers 48 in./lbs. of torque for a powerful screwdriving action
* Includes a wall-mounting charger and a two-year manufacturer's warranty
* 2.6-pounds; 2-year warranty