3000 is not that great for gaming as it only have 2KRO, which mean only 2 key can be registered at once. It depend on what type of games though too, it might not be a big issue. For gaming, I would reccomend 3494 instead, there is one in the classifieds
here.
I like Cherry G80, but they are not the best keyboard ever made either. If you can stretch a little bit more you could get a much better board if you don't mind import. Also, if you don't need a fullsize you might look into CM Rapid as they are a good value, though I am not sure if UK retailer still have anything but black switch.