I would like to have my menu buttons appear after the main menu video finished playing. I assume that this is done using keyframing. Does anyone know how to do this or can point me to a place that gives a good (and simple, I hope) procedures on doing this?
It's not done using keyframing, It's done by setting the Loop Point (which appears on your menu background's timeline as a green, vertical line and can also be set in the Menu Page Properties).
Where you set the Loop Point is the point at which your menu buttons will appear. If you set your Loop Point at the end of the video clip you're using for your menu background, the video will play once and then your buttons will appear.
More details can be found in my book on Amazon.com, if you're interested.