Let's see...
Blue Rose/True20/Psychic's Handbook/Other Stuff By Green Ronin: I'll have to take a look
Black Company: I read up on it, and it didn't sound quite like what I want
SWD20: It's the Force system that gave me the idea in the first place
Elements of Magic: Sounds very interesting...and yes, I'd like to see that playtest document (you can email me at "Galethorn at Gmail dot com"; my forum account is tied to my crappy old hotmail address)
"Magic: The Science and Art of Causing Change": Not quite what I want, but I may take a look at some point to see what ideas I can pilfer
Anyway, thanks for the great response, everybody. I guess my first step is going to be looking through the Force Skills in my star wars book again, and nabbing True20 on RPGNow...