Mice

Microsoft Arc Mouse (black)
Microsoft's Arc mouse is almost as functional as its form is pleasing. The travel-friendly features make perfect sense, and in general, it's a serviceable mouse for Macs and PCs. Only a few minor design issues hold it back.
Specs: External, PC, Mac, USB, 4 pin USB Type A, Mouse, Wireless, Laser, Black

Microsoft Arc Mouse (red)
Microsoft's Arc mouse is almost as functional as its form is pleasing. The travel-friendly features make perfect sense, and in general, it's a serviceable mouse for Macs and PCs. Only a few minor design issues hold it back.
Specs: External, PC, Mac, USB, 4 pin USB Type A, Mouse, Wireless, Laser, Red

Logitech V550 Nano Cordless Laser Mouse (blue)
Logitech's new V550 Nano laptop mouse adds a unique "clip and go" dock that lets you clip the mouse to your laptop's lid, but we're not sure it's a feature anyone has been clamoring for.
Specs: External, PC, Mac, AA type, USB, 4 pin USB Type A, Mouse, Wireless, Laser, Blue

Logitech V550 Nano Cordless Laser Mouse (gray)
Logitech's new V550 Nano laptop mouse adds a unique "clip and go" dock that lets you clip the mouse to your laptop's lid, but we're not sure it's a feature anyone has been clamoring for.
Specs: External, PC, Mac, AA type, USB, 4 pin USB Type A, Mouse, Wireless, Laser, Gray

Microsoft SideWinder X5 Mouse
Microsoft's pared-down SideWinder X5 Mouse is supposed to offer PC gamers a lower-cost version of its award-winning higher-end model. Instead, it comes across as flimsy and overly stripped down. Other mice deliver better control for the same price.
Specs: External, PC, USB, 2000 dpi, 4 pin USB Type A, Mouse, Wired, Laser, Black

Logitech MX 1100 Cordless Laser Mouse
Logitech's MX 1100 wireless laser mouse is the best in its class thanks to a wide array of features that make navigation easier. You have to pay for all of that capability, but anyone who puts serious time in front of a PC will appreciate what this mouse can do.
Specs: External, PC, Mac, AA type, USB, 1600 dpi, 4 pin USB Type A, Mouse, Wireless, Laser

Macally Turtle - mouse
Macally's otherwise unremarkable Turtle laptop mouse at least has the good sense to keep its USB cable out of sight, thanks to a retractable cord.
Specs: External, PC, Mac, USB, 800 dpi, 4 pin USB Type A, Mouse, Wired, Laser

3M EM500GPS Ergonomic Mouse (small/medium)
The 3M EM500 Ergonomic Mouse requires some adaptation, and it offers only the most basic mouse functionality. But the payoff is a more comfortable mousing experience.
Specs: External, PC, USB, Mouse, 4 pin USB Type A, 6 pin mini-DIN (PS/2 style), Mouse, Wired

Macally Accuglide
We like the idea of a travel mouse slim enough to fit into a tight pocket or a space-challenged laptop bag, but the Macally Accuglide's wired connection has limited appeal.
Specs: External, PC, Mac, USB, 800 dpi, 4 pin USB Type A, Mouse, Wired, Opto-mechanical

Evoluent VerticalMouse 2 (left-handed)
The Evoluent Left-Handed Vertical Mouse is worth a try for southpaws suffering from RSI-related pain. We just wish it were designed a little better.
Specs: External, PC, Mac, Mouse, USB, 1200 dpi, 6 pin mini-DIN (PS/2 style), 4 pin USB Type A, Mouse, Wired