[Hank Parsons]

I will let someone else address the Mods question. I use mods, but not for the purposes you listed. I use The Darkest Day which adds spells, quests, and kits; and Tactics, which makes the monsters harder to fight because they use smarter techniques against you.

Turn Undead --- press the button to turn it "on" and then walk around with your cleric, with Turn Undead on. Do not attack, do not cast a spell. Simply walk near some undead and see if you are able to Turn them (makes them run away, or become your followers, or be utterly destroyed). Try it first against low-level undead like skeletons, just to learn how it works. When you are high enough level you may be able to utterly destroy mummies on the spot!

One technique is to Invisible your cleric, and have them walk the whole level with Turn Undead on, destroying them before they see you. I don't consider this a cheesey tactic, do others??