Hiir Logitech MOUSE USB OPTICAL M100/BLACK 910-005003

For the complete control over your computer, the Logitech M100 mouse is the ideal solution. Providing optical tracking, even the slightest movement of your hand is represented on the screen with a flowing cursor movement that never jumps.
With a symmetrical design, this mouse is equally suited to left and right handed people, meaning that there is no inherent bias in the design. The corded computer connection ensures that you don't have to worry about replacing batteries, allowing reliable use over time. Windows XP, Windows Vista, or Windows 7, Mac OS, Linux compatible.