I've setup a new anticheat, called Detox Anticheat 1.1 It's self-updating, autobanning, and lagless anticheat which not only scans and bans the hackers, but also checks the server->client packets, totally making Wallhacks, and speedhacks useless even if they are not banned by some reason (Walls will be invisible for the hacker, but he won't see any players through them)
Of course this is not a 100% guarantee that there will be no cheaters at all, but it will ease the work of admins.
If what you keep holds truth inside, stand up defend or lay down and die...