If you spend a lot of time word processing, a good keyboard and mouse are absolute necessities. If you're in the market for a new keyboard or mouse because you're disatisfied with the one you currently have or because your current keyboard or mouse is starting to give you problems, check out some of the products on this list; there should be something here that will suit your needs.
1. Microsoft Natural Keyboard Elite
While this is the most basic keyboard on the list, it is perhaps my favorite. It may take some adjusting to get used to the ergonomic design, but your wrists and hands will thank you, as the aches and pains that come from typing on a regular basis will soon disappear. Connects via a usb or Ps/2 port; for Windows.
2. Logitech DiNovo Media Desktop
Those who use their computer for more than word processing, and particularly those who have a lot of media files, will love this keyboard/mouse/remote control set. The mouse's recharging base functions as a bluetooth hub, allowing you to connect other bluetooth devices to your computer -- without wires. Aside from bluetooth, the coolest feature of this set is the media pad, which functions like a remote, allowing you to control your media files from the comfort of the couch.3. Microsoft Optical Desktop with Fingerprint Reader
This desktop set for Windows XP features a wireless optical mouse, a keyboard, and a fingerprint reader. The fingerprint reader is the real draw here: If you have a lot of passwords to remember (and who doesn't), you can program them in once and then simply press the fingerprint reader in lieu of entering your username and password. Connects via usb; for Windows XP only.4. Logitech MX1000 Laser Cordless Mouse
A step up from the average optical mouse, this laser mouse provides better tracking, even on slick surfaces where an optical mouse will fail. In addition to the laser technology, this features a rapid-charging base, navigation buttons, and a scroll wheel. For Windows 98 and up and Mac OS X and up.5. Wacom Intuos 3 4x5 USB Tablet
While this is primarily intended for graphic designers, if you're thinking about taking advantage of Word's handwriting recognition feature, you'll need a device such as this that is capable of capturing your handwriting. Features a pressure sensitive pen for writing (or detail work on graphics), a wireless, battery free mouse with programmable buttons, and the tablet itself.