http://www.atheist-community.org/activism/board.php
Contact me through this page, and I'll see what I can do. Frankly, I don't see a great deal of potential in a group at ACC, but, if you really want to give it a go, I may have some resources that could help you out.
Keep in mind that student groups have difficulties at universities that would be far worse at community colleges. The rotation of students is a large obstacle. Students tend not to stick around ACC for long, and it would be difficult to start and maintain an organization that will last there longer than the founding members. While there may be 30,000 students in total, There aren't nearly that many at any particular campus. Your active membership will be made almost entirely of only one or two campuses. Even with top-notch advertising saturation, you're likely looking at a small and inconsistent group.
Get me a plan of exactly what you want to do (group mission, structure, activity, etc.) and I'll get back to you.
-Shilling