Exactly... My wife and I start foster parenting classes in February in hopes to eventually adopt a few siblings in need of a good home.
Congratulations! Friends of mine, an older couple, fostered a brother and sister, 5 and 7 at the time. Adopted them a year later and their daugther just made the high school honour roll - again ;)
Beware any child(ren) diagnosed RAD. Run far, far away, especially if you already have children. Do NOT let well-meaning foster care workers talk you into adopting or placing RAD children with you...
Unless you don't mind them hiding knives around your house for later use...