We'll be new home schoolers this fall too, but I just wanted to plug WPA (Wisconsin Parent's Association)
. I've found their newsletters and handbook (be sure to get that, too) to be invaluable.
Also, we were at the WPA conference this summer and in one of the workshops regarding the legality of home schooling we asked about HSLDF and they recommended not joining, which surprised me, but I wish I could remember what their rational was. I'll see if DH remembers.
Anyway, I think the WPA handbook is a necessary resource if you want to home school in Wisconsin.