I have seen gaming keyboards, at Microcenter I think, where they have a circular sort of arrangement loosely modeled after a human hand. So several keys needed for playing games are all in one place. I never paid attention to any brands, but you can always browse the Microcenter website, maybe you'll find something there.
I'm looking for a certain kind of USB keypad, namely one that has the full set of numbers 0-9, but also the "home, pgup, pgdown, end" keys. I distinctly remember seeing a picture of one online somewhere, but I forget what brand it was. However, most of the usb keypads I see online and in stores don't have those four navigation keys.
So I am wondering if anybody knows of a place that sells one of these, preferably at a decent/reasonable price? I would reeeeally appreciate it if you do. Thanks a lot!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic