The usual way of creating a flyover presentation in rendering software such as 3D Studio Max is to create a travel path. The camera is then attached to this path and told how fast to travel along it, where to point, and when. This is exactly what you can do in SketchUp too. This method is usually preferable over the walkthrough you've already looked at because:
The travel is smooth, not jerky
The speed of travel is constant
There is greater control over where you go and what you look at
Scenes are created automatically
To prepare for the next step, you need to download and install the following plugins:
The
Flightpath.rbplugin by Rick Wilson from http://www.smustard.com/script/flightpathThe
BezierSplineplugin by Fredo6 from the SketchUcation Plugin Store.