Amazon has the HP Wireless Optical Comfort Mouse: http://www.amazon.com/HP-Wireless-Optical-Comfort-Mouse/dp/B0046EDQSY/ref=sr_1_52?m=ATVPDKIKX0DER&s=electronics&ie=UTF8&qid=1291025238&sr=1-52
for $4.99.
HP Wireless Optical Comfort Mouse: http://www.amazon.com/HP-Wireless-Optical-Comfort-Mouse/dp/B0046EDQSY/ref=sr_1_52?m=ATVPDKIKX0DER&s=electronics&ie=UTF8&qid=1291025238&sr=1-52
Free shipping with Amazon Prime or if you spend $25 or more.
Note: Usually ships within 2 to 4 weeks.
Product FeaturesStay Connected: Advanced 2.4 GHz wireless technology for
less interference and longer range of operation to work anywhere
Get Comfort: Symmetric sculpted design and rubber sides provide comfortable
and secure grip for left or right hand use.
Get Convenience: The micro-receiver is so small you can leave it plugged in
your desktop, notebook or store it inside the mouse.
Travel with Confidence: Optical sensor with adjustable sensitivity (1000 CPI
default, 1750 CPI max) works on many surfaces
Be Productive: 3 buttons including a smooth scroll wheel with middle rubber
trim for great control scrolling up and down
Technical DetailsBrand Name: HP
Model: XV420AA#ABA
Color Name: Bronze