How to Have Event Fire on PostStatus Changed?

Feb 10, 2010 at 7:18 PM

I am trying to hook into one of the events to have something fire whenever the PostStatus is changed to Published, but I can't see a way to do that.  All I can do is check PostStatus (or IsPublished, in this case) on AfterUpdate, but that will cause it to fire each time the post is updated, not just the first time it is changed to Published.  Is there any way to accomplish this?