Hi Rodin,
See this tutorial/topic too for ideas: http://forums.sketchucation.com/viewtopic.php?f=18&t=744
There is this 3D Warehouse model that also works this way: http://sketchup.google.com/3dwarehouse/details?mid=2d8578412680a3aec4922817757c112e (place the component on the wall and explode the parent component).
There is also this video but that's cheating π
[flash=640,505:1a1kaeka]http://www.youtube.com/v/ITO-oaowwrU&fs=1&[/flash:1a1kaeka]