Can i get some recommendations on good bench vices in the 100-150 dollar range. I will be using it to hold steel while i cut it out with a hacksaw. I been using F clamps on my work bench to hold the steel down and it's not working to great. Should i stay away from cast iron and go with ductile or steel vises? Plus my work bench has that crappy compacted wood for the surface, am thinking i should get a nice thick slab of real hard wood for a new top.