Hello, I'm creating my first campaign in the Dresden Files RPG and I would like to ask for some general tips you have for a first time GM for DFRPG (I've mainly done more rules heavy games like DnD 3.5 and Fantasy Craft, so this is certainly a bit different).

But I also like to ask for some more specific help. The story I'm planning on running is based at the college I go to and the players are playing themselves with twists (such as a focused practitioner, etc.). Though I can see where a lot of problems could arise from this kind of campaign, I think it could be pretty fun. Anyway, I've come up with some pretty interesting ideas on supernatural aspects on the college and surrounding areas; however, since I want this to be pretty low power (base refresh of 6 or 7) I've been trying to figure out what would be appropriate to throw at the PCs since even Red Court Vampires might be too powerful to use.

I guess part of my problem is that I keep thinking of what supernatural things to use, when I could make stories completely focused on other focused practitioners and the like. Also, since I've mainly played more rules/combat heavy systems, I'm probably thinking of encounters too much as purely fights.

Anyway, if that made any sense at all, what would you think would be appropriate antagonists and creatures for this power level? Also, as said above, general tips would also be great.