@Joshua Dorkin I for one would be happy to make some calls. I know in southern California there is an abundance of meeting spaces, convention centers, etc., every conceivable airline flies in to LAX, John Wayne airpport or Long Beach. There are hotels everywhere in every price range imaginable. I'll bet Will B will be happy to look up in his area of so Cal too. So... get the info on here and let's go to work!
As far as offering incentives for peoples help, I wouldn't get into that, just believe there's enough people on here and appreciate the value of Biggerpockets that will be happy to help. If it ended up someone had to put extensive time in, etc., then you can give them a discount, but for now, stay away from that I think.
You know what we need to find out.
How much meeting space and what configuration do you want? How many days? As far as hotel rooms, all hotels offer discounts for groups, so that won't be a problem.
You get the idea... details!