This wonderful "demo smoothing" tutorial popped up in my youtube feed and i thought i'd share it here. I've read about 5 smoothing tutorials and none of them have been able to properly explain what the hell is happening or what to do in order to smooth a demo to promote a map, and although it's great that some people offer to do it on your behalf they tend not to be up to the same standards as the mapper hopes for, IE camera clipping through walls, too much blur, too fast, missing key details... etc. But this vid is great and should allow you to do something yourself; exactly how you want it.
http://www.youtube.com/watch?v=X_Db_THGSD8
http://www.youtube.com/watch?v=X_Db_THGSD8