From my experience in new york, you can get into almost any "hot" or sought after club with the same tactics -- ones that have 200 people lines at midnight. Bypassing a 200 person line is pretty exhilarating.

He seems to wrap it up well in his tips -- the most important is that it seems natural, that you dress well and seem meant to be there, and not be awkward about the tip.

Walking straight up to the bouncer at the front of a line, asking to get in, and (after you are denied and told to get to the back of the line) saying "Isn't there some way we can work this out?" while slipping him a twenty works every time.