I'm looking for standard 2D symbols (not sure if that's the proper terms) to use in floor plan views for bathroom ventilation fans and smoke detectors.

I see some 3D stuff on RevitCity, but I just need something simple that will show up easily on floor plans.

I'm using Revit Architectur 2008 and this is my first project. I'm a bit surprised that Revit (when I use the "Symbol" pick) doesn't seem to have this basic stuff. Am I missing something major here?