Michael, I have a 5hp Colombo and have had very good luck with it. It's expensive but it's a very nice tool. Mine also has the electric fan and is so quiet I couldn't even believe it when I first started using it. I've heard equally good things about Colombo and HSD and from what I know I don't think you could go wrong with either. I'm not sure but I think the HSD's are not quite as expensive. The only thing I would do differently if I had to do it again is to go with a tool changer ready spindle. Now that I need a changer I have to get a whole new spindle which sucks.