Cheers Everyone, This is good help. Poison fangs, we do commercial, industrial and residential. We have a drop saw, grinder/s and threaded bar cutters supplied by the work shop for installs. So a circular saw is probably low on the list of things I will need. Impact driver and drill will be first, then things like insulated screw drivers, insulated pliers, insulated side cutters, insulated vice grips, multi meter, mega meter, temperature sensing aperatus of some kind, r22 and 410a gauges, vaccum gauge, scales, pipe cutters, expanders, swaggers, reamers, benders, map gas and torch.