i bought a cyborb v7 keyboad from pcworld for £49
http://www.pcworld.co.uk/gbuk/cyborg-v-7-gaming-keyboards-06764336-pdt.html
has a button so you can have separate colours for different sections of the keyboard. hitting the cyborg logo will turn on the macro keys and disable the windows key
it has volume/media controls on keyboard and usb/audio and headphone jacks on the keyboard itselfs
with a serperate usb conection for the keybaord and usb (the audio plugs go in back of pc)
(red,green, (another kind of musy peas colour or yellow to choice from by pressing the buttens)
and the brightness can be turned up or down (there is a butten on keyboard as well that will turn the lights off which is good for day time gaming