Logitech has the Logitech Performance Mouse MX Wireless Laser Mouse (Dented Box) for $100 - $40 off with coupon code logi_pmmx_6410
[Exp 6/10] = $60
with free shipping. Features the Logitech Darkfield Laser Tracking technology which claims to work on glass and uneven surfaces. Includes Unifying receiver, micro-USB charging cable, AC power supply, pouch for charging system.