You're in luck! I work at a Dog Training Centre that specialises in Working GSD's!
Check out our website there are loads of videos and information about our working GSD's on there
http://www.vislor.com.
As for living with them, I've got a 13 week old, a 6 month old and a 5 year old working GSD in my house right now and they're absolutely perfect!
Need to put in good foundation training to make it work, though. It helps that my dad has been training Working GSD's since before I was born so my life pretty much revolves around them...
Anything specific you want to know just ask me