You have a couple of choices. You could sign up as a Trooper level member which is free and gives you access to the forums and a price on exlcusives that's usually about $10 or so higher than a paid Officer level member pays. Or you can join the club for $42 a year which, if you join before March 16th, you'll get a free action figure and a subscription to the monthly newsletter, plus you'll save at least $10 on each exclusive. If you're planning on getting the full AT line, you're going to save more than $40 by becoming an Officer level member.
This year's free figures are a 3.75" Big Lob and the 12" is the Urban Adventurer. There's also an accessory set you can buy for the Urban Adventurer that includes a full outfit and accessories. The monthly newsletter just changed this year and has more pages than in the past and is on glossy paper, more like a comic book now.
I've been really happy paying the membership fee since 2002 and just re-upped last week for another year.