Aggro, Casting Mobs, and a pink tutu

[Mrwalsh]

I've got a few questions, maybe someone can answer:

1) How do you make your NPCs aggro on sight? I've given them faction, given players a base negative faction, and even slaughtered those mobs (while being given the 'Your faction cannot get any worse!' messages) and yet they will not attack me on sight. How?

2) NPCs with spell tables seem to like to cast their spells over, and over and over...can this be stopped, so they only cast at certain intervals? And can I prevent those casting mobs from having more than 1 pet (I've seen several of the same pet)? And why do they look like they're doing jumping jacks when they cast (players too), and can THAT be fixed?

3) The regen rate for players and mobs is insane. Can I change this, whether in the database or in the code?

Thanks for the help.