This deal has ended.
Update: The price has gone up. Buy.com now has the SMK-Link Bluetooth Mouse for Mac on sale for only
$35.38 $36.24. This rechargeable mouse features an ergonomic design, a range of up to 33 feet, and has received 4.5 out of 5 from its first six reviewers. Be aware that your Mac must be Bluetooth-enabled to use this (most are). Budget shipping is free and there is no tax (except CA, MA, MD, NY, TN).