A couple more things: You don't actually need to kill everything in the devil's outpost. Just one particular mob (Devil of something? I think), who will drop a scroll. Then just grab the scroll, exit the outpost and bring it back to Temper. In terms of getting notorious reputation - the previous advice is correct; it's almost essential that you get master of light first. Beyond that, if you don't want to kill peasants (which I don't) the steps I typically take after getting master of light are as follows (it helps to do these in this order):
Donate heavily at a temple of baa - that should get your reputation down to something in the bad range. Then start talking to peasants and threaten or beg those who won't talk to you. That will gradually get it down a couple more levels. Then turn in the bones from Wormthrax cave and Bootleg bay (turn in is in Free Haven). Then hire a couple of people who will lower your reputation. That should get you there fairly quickly and no peasants are harmed.
Once you've gotten your master in dark magic, dismiss the bad guys you hired and donate a bunch at a regular temple and that will take you back up to indifferent.
Hope that helps.
