If you have the money (and are into gaming) I'd go with a Logitech G502 Proteus Spectrum for the mouse. It's got rgb lighting and a few extra buttons and, depending on your hand size, is very comfortable. I can't give you a great recommendation for a keyboard but Corsair and Razer mechanical keyboards certainly look very nice (they have some rgb lit ones) and Logitech also has a few. All of the rgb keyboards are pretty pricey though so if you are on a budget I would spend your money elsewhere or save up. Hope this helps!!