HI EVRO sounds like me I've have owned a Arlec for years now and thought I would like an up date so I hinted to my misses just before xmas that I wanted a Demel. Xmas day came and she bought me the Demel 300S (the same one that you posted first) from Bunnings for approx $90. This is the best tool I own, I use it for buffing PF's, cutting plastics, you name it. After Xmas I went down to Bunnings to see if my wife got a model that would really suite me. And yes she done well this is a beauty. IMO the best on the market it has varying speeds, sits in your hand like a gun, and no charging of batteries. You can also add from Bunnings different box's of accessaries to suite this tool all pieces are of high quallity and you get a good variaty. So some times the lady dose do the right thing