Great keyboard for using both Windows and Mac OS X at the same time

Ever since I started running Windows as a virtual machine on my Mac, I'd been frustrated that the Apple keyboard was missing Windows-specific keys such as "print screen" and the Windows key (for the Start menu). On the other hand, using a typical PC keyboard in Mac OS X meant not having an Option key, having to remember that the Alt key was the Command key, and not having volume keys. I found the generic-sounding USB 2.0 keyboard but discovered that the black one is actually a very innovative keyboard with many great features:

• includes the useful 'Windows' key and 'print screen' key but not the 'application key' (right-click key) that I've never used.
  
• caps lock is tucked away in the bottom instead of to the left of the letter-a (where it would otherwise be too easy to hit)
  
• dedicated volume keys (mute, quieter, louder) are slightly recessed
  
• the 'num lock' key is tucked away in the bottom row instead of being in the upper-left of the numeric keypad. That spot is now used by an extra tab key, which helps us accountants with rapid data entry!
  

I suppose that the USB 2.0 dock on the top of the keyboard is convenient for things like thumb drives, but since you have to plug in both of the keyboard's two USB connectors to your computer to get that port enabled, it's just a one-for-one extension and not a USB 2.0 hub. The two-port USB hub on the back of the keyboard is just USB 1.1, so those ports are only useful for your mouse and other simple devices.

Installation tip: if they keys don't seem to be acting the way they are labeled in your operating system, check the manual for your key mapping instructions (e.g. Mac OS X 10.4 Tiger has an extra set of steps compared to 10.5 Leopard). In Parallels 4.0, I had to use the Preferences to re-map the 'Alt' key to the 'Win' key and the 'Cmd' to the 'Alt' key, and deactivate the Mac's Command-tab so that Alt-tab would work in the PC -- then all the keys worked as they they indicated!

The Matias Corporation is a Canadian company, and they sell the USB 2.0 keyboard both directly from their web site and through a long list of resellers worldwide. I got the keyboard for USD $35, but you can get a discount online.

Another nice keyboard that I'm using now is the Logitech Internet Navigator Keyboard (Part Number: 967233-0403). It's been discontinued but still available online from 3rd-party sites. It's a PC keyboard but the 'Start' key also has "alt" and "option" labels on it, and the "Alt" key also has "Apple" and "Command" labels on it. The volume and mute buttons work with the Mac sound settings! It doesn't have a USB 1.1 hub built-in though.