i am selling my Mechanical keyboard on Friday onward which is a Cooler Master Cm Storm Mech Cherry Mx Blue Switches (UK version) all but one key lights up (the F12 button) and all the keys work fine even the key with led not working here is the site with all the specs on it.
http://www.coolermaster.com/peripheral/keyboards/mech/

i am looking for £50ono my seat is V15 if you are interested to buy it and even test it out as well