We run a college with 2 Campuses. SD looks great, in that we can move our separate Helpdesks into one system, using Sites.  However, we don't use attributes like 'Office', or any other location, since the campuses operate on separate domains (in one Forest).

Is there any way to import users from AD Domain 1 and have them automatically registered into Site 1, and AD Domain 2 -> Site 2?

We really don't want to retro fit attributes and modify our processes to ensure every user (new and old) has an attribute added.

Thanks.