I'm not sure if they have those Cradles available in the US. I think over in Europe you can get them. But I have seen the smaller ones in the US. Don't know if thats what your looking for. Although some have an extra battery slot so you can charge up another battery. Could be good to have if you need the extra juice. Good Luck in your search.
Found something for the GSD. Not sure if it will work for CDMA.
http://www.expansys.com/d.aspx?i=171007