You guys are making a fantastic effort at increasing activity and event turnouts, so I'm confident you'll put it to good use. This calendar is a bit more advanced than others we've used in the past. You should have the ability to...
[*]RSVP to events.
[*]Comment on calendar events (this should not replace the normal threads)
[/list]Since the link is no longer on the nav bar, you can view it by visiting it here or by clicking on the sub-forum in Community Events (it also displays on the index).
There's also a hook on the side-bar of the index that will provide a feed of Upcoming Events, similar to the "Recent Topics" area. This probably renders the manually-updated Calendar area of the header more trouble than it's worth. Fergal, you should probably turn it into a few quick bullets on why/how to join.