I wrote a short overview on integrating Xlobby with PowerHome.
http://mannyman.googlepages.com/part12
The tutorial focuses on lights, but you can have any PowerHome connected devices actuate a trigger that will in turn control Xlobby (your motion detectors can have Xlobby go to your web/security-cam screens, etc.).
Prerequisites:
Colby's Guides: http://xlobby.incolby.com/
Steven Hannah's Toggle Buttons thread: http://www.xlobby.com/forum/viewtopic.php?t=4201
XSend-XReceive thread: http://www.xlobby.com/forum/viewtopic.p ... ight=xsend