I have the MX3100, and it's great for everyday uses, but when it gets interference during a game, I find myself wishing for wired. When I build my next computer, it will def. be with a wired keyboard and mouse. It sounds like you might need wireless for your setup though. I can't say for sure if bluetooth is better or worse than Fast-RF for gaming, but what I've heard is that Fast-RF is better, so stick with the MX3100.