I totally understand that sketchup was made for the day-to-day user, but the drawback is precision and control. Having the ability to snap would GREATLY enhance the ability to draft accurately and without the need to constantly be zooming-in and zooming-out and hovering over intersections HOPING SU will choose the endpoint instead of a projection and it will make the use of the software so much faster.
The second thing I REALLY REALLY REALLY wish sketchup had was a manipulator tool, much like the one that is available in Maya. I find that rotating and moving objects in sketchup is such a PAIN because there is no REAL CONTROL.