Cracked Mirror is doing a Superlink Producted they call a Fantasy Toolkit (read: not setting material as yet) that should prove interesting. There in the process of getting approval, so it should be released any time now. Link: http://www.cracked-mirror.com/
Don't know if this is in line with your idea, but you could contact the publisher of each product that has Feats you want to include and get their permission. It may not even be necessary, but it would at least be polite.
A suggestion:
Could the DMs' possibly keep the number of friends in their games to as low a minimum as possible. This may seem like a bizarre request, but I know it would be annoying to me to see a game offered that looked fun and I wasn't able to sign up becasue 75% (or possibly more) of the...
I like to attend! (a gaming event in Maryland...FINALLY!)
Game System(s): Mutants and Masterminds
Time Slot Preference (AM/PM/Either): Either.
F.Y.I.: I'd be happy to help out in some way if needed. I live like 10 minutes from the University (Go Terps!).