Mice

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.

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

Macally Pebble Wireless Laser Mouse
The Macally Pebble Wireless Laser Mouse is an inexpensive 2.4GHz wireless mouse that works equally well on Macs or PCs--but its unusual shape may not be what you're looking for.
Specs: External, PC, Mac, 1600 dpi, Mouse, Wireless, Laser

Microsoft Wireless Laser Mouse 7000 (2008)
The Microsoft Wireless Laser Mouse 7000 isn't cheap, but if you want to go wireless and have an extra $70 lying around, this mouse is certainly an option. If you're going to spend that much, though, we think you'll like Logitech's high-end offering better.
Specs: External, PC, Mac, AAA type, USB, 1000 dpi, 4 pin USB Type A, Mouse, Wireless, Laser

Microsoft Wireless Laser Mouse 6000 (2008)
The Microsoft Wireless Laser Mouse 6000 is travel-friendly and more comfortable than your standard point-and-click, once you get used to a few design quirks. If you're looking for an accurate wireless mouse and don't mind replacing batteries once a year, then the Microsoft Wireless Mouse 6000 is the way to go.
Specs: External, PC, Mac, AAA type, USB, 1000 dpi, 4 pin USB Type A, Mouse, Wireless, Laser

Trust GM-6400 Gamer Pack Advanced
The Trust Gamer Pack Advanced GM-6400 gaming-mouse-and-headset-combo is not a bad way to sell hardware to gamers, but we had some sound quality issues with the headset. Those problems and the high price tag scared us off.