Newegg has the Logitech MX Revolution Black 7 Buttons 2 x Wheels RF Wireless Laser Mouse for $60 with free shipping. Use coupon code EMCMLNV27 to knock it down to $50.
Features:
* Sleek, black design
* Micro receiver with USB interface
* 2.4 GHz RF wireless technology
* Laser optical sensor
* Seven (7) programmable buttons
* Two (2) scrollwheels
* Hyper-fast scrolling
* Logitech Smartshift technology
* Document Quickflip
* Touch-to-Search button
* Rechargeable (built-in Li-Ion battery)
* Power saving On/Off switch
* 4-stage LED battery indicator
Newegg.com - Logitech MX Revolution Black 7 Buttons 2 x Wheels RF Wireless Laser Mouse - Mouse
Logitech MX Revolution Black 7 Buttons 2 x Wheels RF Wireless Laser Mouse $50 + FS 
