I don’t know about you, but I’m doing just fine with two buttons on my mouse along with a scroll wheel. For those who want more, there is the wireless 9-button mouse from USB Fever that uses RF instead of Bluetooth connectivity, boasting up to 256 IDs per channel in order to avoid interference. It features 800dpi resolution and comes with a circular scroll wheel. As with most wireless mice these days, there is a sleep mode to help you save on power consumption. The Wireless 9-Button Mouse retails for $29.99 a pop. If you want to stick with a wired version, USB Fever is selling it for the same price. Strange that.