Me and Pigbacon and Egg have complete the Team Anguish client with Spidermode allowing you to climb walls, superjump, flying, speedhacks(if the server registers you moving too fast, there is the slower speedhacks which is normally allowed on servers as undetectable), Fullbright, lighting up mobs, wallhacks for mobs and players, X-ray for objects, ores, chests, and house objects. No weather clientside is toggleable, and everyone with the client on the members list has deadmau5 ears and a cape, which is toggleable. Friends of ours have blue names, and members of team anguish have purple names. There is also Noswing to stop the swinging animation, debug and co-ords, plus more comming soon.
it's quite impressive.