Double Post, Sorry

I found the answers I was looking for while I was waiting for a response. Hats Off to The Total War Center Forums with a great search function
In case anyone else is interested, you can reduce the revolt risk of a province in data\descr_rebel_factions.txt
The provinces you may want to change can be found under rebel_type. The chance, which gives a number, is the one to reduce for getting rid of revolt risk. I think that each # adds +5% revolt-risk to a settlement. Each settlement may also have additional revolt risk that is not listed. This can be caused by governors traits, spies, or recent takeover. Some of this revolt risk may reduce over time.
To reduce brigand and pirate spawn: look in data\world\maps\campaign\custom\--- open the folders of the factions you want to play and look in the descr_strat.txt of each. (You may also want to open and change the descr_strat.txt of the barbarian invasion folder) To reduce the rate of the brigands and pirates that spawn in-game, RAISE the number of the brigand_spawn_value and pirate_spawn_value. At 9999 each, you should see almost no rebels spawn in game. Hope this helps
EDIT: There is also some non-region based rebels at the bottom of descr_rebel_factions.txt. I think these chances can be set to 0 to disable their spawn/revolt.