Amazon.com: 3M Wired Ergonomic Optical Mouse, Patented Vertical Grip Design Keeps Your Hand and Wrist at a Neutral Angle for Comfort, USB/PS2 Plug and Play Compatibility, 6.5' Cord, Large Size, Black (EM500GPL) :
Amazon.com: Perixx PERIMICE-209 P, Wired PS2 Optical Mouse with Scroll Wheel and 1000 DPI, White (11832) : Electronics
Amazon.com: MOAFKOA New HP 537748-001 PS/2 PS2 Optical Two Button Scroll Mouse : Electronics