I've added a calendar mod to the forum.
There's a link under the title at the top that takes you to a full page, one-month view, or a small toggle button to the right underneath that that toggles a one-week view.
When you start a new topic you can additionally choose to make it a calendar event by selecting the date, time and duration in the Options bit (at least I'm hoping non-admins can see this, let me know if you can't). This will then create an entry in the calendar which expands through the magic of Java when you hover your mouse over it. Click the event for a shortcut back to the post...
I've edited a couple of old posts and added events, like the Southampton comp. and Berck. If you post a new kiting event then please add an event to it from now on. I think that auction links could have a calendar event for the day they finish, perhaps?
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Update: Non admin users can't add a calendar event, so if you want to PM me I'll add a calendar event to any appropriate post that you start.