I agree with Alie about staring with a Stealth. They seem to be about the best of the cheap ones, so it's a good toe-in-water thing. The consistent stroke of rotaries and easy speed adjustments are exactly the point. Rather than getting the trauma from a machine that hits, the rotary just moves in and out on the same track, with no other variables working to affect the stroke other than how much juice you give it. Try one for sure Jimmy, but get someone who knows to walk you through your first set-up or you'll likley wind up pitching it immediately out of frustration.