I have the Logitech LX710 and the wireless laser mouse(LX7) which came as part of it was fine for gaming IMHO as was the Logitech MX1000. I damaged the charging station for the MX1000 and it meant very spotty recharging as a result! I bought the wired G5 laser mouse because it was very cheap,I did not have to replace the battery every few months and because it had a good profile and layout.
I would probably stick to a wired keyboard and mouse for gaming as you can more for your money.