I'm looking to get a mechanical keyboard, I would like for it to be as cheap as possible, I would like for it to have cherry mx blue or brown switches (which is better?), and for it to be under 40cm (16 inches) wide as my desk is small, I don't really care about back lighting however it would be nice, I've been looking at the razer tournament (possibly stealth) edition as it fits all these categories and its only £70, but is there a better choice???