How to animate vertical scrolling of a Silverlight ScrollViewer a "page" at a time

I was faithfully married to MFC from 1994 to 2008, developing over a million lines of code for desktop applications during that time. Pockets of my employer at that time started flirting with WPF and I myself abandoned my longtime MFC wife and took up an affair with WPF, with which I've been infatuated ever since. Not that I wouldn't be willing to move back in with my wife for the right offer. But I still hold out the hope that WPF will be able to support me and all its other lovers over the long term.