I know that around here X-key is all time favorite followed by G-keys on G15 and G11 keyboard, and then N52, but I still wanted to list most alternatives I know of



WOLF KING Warrior http://www.wolfkingusa.com/



BELKIN N52TE http://catalog.belkin.com/IWCatProdu...duct_Id=390404


Nostromo n52 http://catalog.belkin.com/IWCatProdu...duct_Id=157024


Cyber Snipa Game Pad V2 http://www.cybersnipa.com/us/product...-mouse-pad.php


Ideazon FANG Gamepad http://www.ideazon.com/us/products/fanggamepad.asp


Saitek PZ31A http://www.saitekusa.com/usa/prod/cyborgcommand.htm


Genius ErgoMedia 500 http://www.genius-europe.com/en/prod...&ID=25&ID3=370


Microsoft Sidewinder Strategic Commander http://www.guru3d.com/review/microso...r/index1.shtml