Okay, I'm responding to my own thread just for posterity's sake...I was mistaken earlier about the Intersect tool not working. Well, at least it wasn't working with the way I had things configured earlier. All I ended up doing was adjusting the XY Resolution and Tolerance to 0.0001 mm in the geoprocessing settings from within ArcMap. Once I did that, both approaches using the Spatial Join and Intersect tools worked!Such a simple solution to what seemed to be an aggravating problem...