Shimano LX® ST-M570 shifters/levers are available at JensonUSA for $54. Pretty good deal for a replacement.

This is the brake/shift lever combo for the Shimano Deore™ LX® group. The 9 speed shifters provide precise, light shifting action for 9 speed Shimano® drivetrains and feature an optical gear display that visually indicates which gear is in use.

The Servo-Wave brake levers provide quick response and strong braking power when used with linear pull (V-Brake®) style brakes. The levers are also compatible with mechanical disc brakes, such as Avid or Hayes.

Included are Shimano® stainless steel brake and shift cables and sealed housing. Item includes left and right shift/brake levers.