Hey that's awesome you found one to adopt! I'd love to see a picture of her.
I'm looking to add a male playmate for my girl and have been exploring the rescue option. I'm getting frustrated at not getting my calls returned, and a general pita process, but we'll stick it out a little longer and hope we find him there.
If I can't find him there, the girl I go to for obedience training will have pups this fall and they are incredible dogs, with sable coloring.
Do you have much GSD experience? I highly recommend obedience classes, for the socializing if nothing else. I take her everywhere I can as well, football/baseball games and practices have been great for introducing her to new stuff. I make it a rule to do all I can to introduce her to at least 1 new thing everyday.
Enjoy your new buddy!
Funny that my girls name is Abby as well, just spelled different.