What I typically do is set up one sheet and locate the plan view where I want it. I then draw lines at a reference point on the floor plan (i.e. a corner of a the building, a column grid intersection, etc.). I then copy those line into my titleblock family and reload it into the project. For subsequent sheets, I drag the plan onto the sheet, then move it to the reference point. It of course is not exact since you can't snap to the floor plan, but it gets it close enough.
I understand the reason we can't duplicate sheets (because you can't have the same floor plan view on multiple sheets), but it'd be nice if there was a way to make it work. Like, when you would select a sheet and click "duplicate", Revit would ask what floor plan view to place on that sheet. Maybe in 2010...2011??
