I love my Gaming Keyboard Stealth Merc Steelseries keyboard. Although most places sell for over $100 you can find it used or on sale. I got mine used and works perfectly. It's wider than most keyboards but that's because it's got extra buttons for arrow keys and easy key access even numbered keys from 1 to 11. Takes a little while to get used to the new key layout on the side instead of using wasd but once you got it down it's much easier and faster to use.
You can also press a button to change the led color for the keys from red, blue and purple and even choose the brightness. But what I like about it most of all is with the program it comes with you can program any key to do what you want and have it be game specific so if you want...