3M now has Trivact Diamond floor discs. It is a box of 4 - 5" discs that are diamond impregnated. They are 400 and 1000 grit cuts to bring a nice shine to the floor. For those who want to bring an extra shine to the floor, they have the concrete protect. It is a polymer based product to apply to the floor to protect and shine the floor. While I personally am still partial to a water based stone floor impregnator, If what you absolutely want is a great shine then this extra step is great and only needs be reapplied yearly with 1 coat.
Have a look at the pictures of our warehouse before and after.