Air Inc.
I agree with FlyingSig - and I'm not just saying that because he taught me to fly. i'm the friend he mentioned.
the Job Fair is definitely worth the money if you're interviewing for a regional. you get to talk to every airline that's hiring (or taking resumes) and you get face time with people in the hiring department. ask them whatever you want to know - just don't sound like your comparison shopping.
the membership - i like the newsletters for hiring info, and the magazine for company history. but most of the stuff sits on my bookshelf, but it would probably be handy if you're getting back into interview. but keep in mind you DO NOT have to be a member to go to the fair and you can buy whatever you do like when you're there.
i first went to Air Inc ATL in July of 01. i barely had 1000 hours, but a lot of jet SIC time. i got 2 interviews plus strong interest from 3 others once i hit 1200 hours. then 9/11 hit - buh-bye interviews. I went back this year with 1500 hours and a type rating. gave my resume to 5 regionals, got interviews with Comair, ACA and ASA, got offered jobs at two of the three.
the fair has lots of seminars and other stuff, do it if you're interested, but this year i just went to the recruiting phase @ 4-7 p.m. on saturday. you wait in a bunch of lines, and then you get a few minutes with each recruiter. you may get a pilot or an HR person. introduce yourself and list your strong quals in 60 seconds, and if they like your numbers, you'll get an interview. comair called immediately, ACA a week later, and ASA about a month or so later. have letters of recommendation to the ones you like when you get to the fair. if you have letters, you'll get an interview - trust me.
good luck!