Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
I believe Board Member binkspot makes great laser unitsBoris
+1 http://www.laseit.net/ we did not buy the mounting system.. I recommend 2 ea cross hairs and 2 ea dots for light pattern.
Binkspot's system is not a DIY system. It is very versatile and well made.