Mr. Mike Pilkington (teacher of an upcoming SANS mentor class) will address HLUG this Saturday at 2pm on wireless access point security. Now, I know what you're thinking. You're wondering why a Linux users' group would want to know about network security in the context of mostly making a bunch of Windows users happy. Here's two reasons:
First, networks largely feeding gobs of Windows boxes constitute the environment that Linux often finds itself in.
Second, Mike will demonstrate the "evaluation" of networks using various Linux-based doohickeys (if that's the way you spell the plural of 'doohickey'). Be there or be uninformed.