Have not created my ideal cutting table yet - still have folding table set on cinder blocks.
However where I used to work we had two large work spaces created by putting a section of butcher block countertop or really thick plywood on top of two drawer filing cabinets or other storage cabinets of similar size. In order to get them tall enough for working comfortably we put cinder blocks under the corners as they did not need to be movable.
Also if there is some local or nearby business that is selling out or remodeling and selling their store fixtures, go check it out. You can sometimes get really good buys on items to be repurposed - shelves, sales counter, cabinets, etc.