Well, I just picked this nice keypad up today. I got $100 over Christmas break and wanted to treat myself. So instead of buying a full keyboard, I got the below: its called a Wolf King Warrior. This thing is very nice for those who play FPS (First Person Shooter) games. Although its designed for FPS, this thing can probably play most (if not all) generes of gaming. I've already tried it on World of Warcraft and (after changing some keybinds that I had previously set-up) Half-Life and it works very well. Of course, I'm a player who likes to use both the mouse and keyboard and this keypad works very nicely. Definately not a good one for someone who likes the full keyboard. ;) I have to use voice chat as typing is...problematic. However, the original keyboard is right in front of it so typing is not an issue.
Contrary to what you think, this thing is actually very nicely priced: $29.99. http://www.thinkgeek.com/computing/input/886e/
Anyway, thats my monthly advertisement about something new. ;) So don't think I work for em. Of course, the keypad isn't for everyone, but I found it fit my style perfectly. Anywho, thats my :2cents.
Enjoy!
King Linksr