Logitech.com has the Logitech V220 Cordless Optical Mouse for Notebooks for a good price.

Pricegrabber Price : $31.73 Shipped

1. Logitech Price : $24.99 Shipped
2. Use coupon code logi_v220_82011 to get $12.50 off ( Exp : 8/22/11 )
Final Price : $12.49 Shipped