Help me out here guys. Brands, features, ect. I'll be using this thing for around the house and want to stay under $250 and stay away from Dewault products if possible. Should I buy a new fixed or a used sliding? What does the sliding feature give you? Initally buying to install a wood floor in the new house, but will use on 2x4's and general molding from time to time. Any wood workers here?