[Xabassis]

i still think that toons will be able to lock in aggro, but it will be easily lost and only the skilled will be able to keep them locked in... i mean, your not really gonna see your target running to someone behind you if you bash them in the head when they try to move, now are you?
If they intend for combat to be as realistic as they say, then a good old shield upside the head should stun them long enough to re-posistion yourself and prevent them from advancing, so at this point if anything the mob will spin in circles finding out who it wants to smack.... which will most likely, be... the warrior, or given tank who smacked him with a shield =p