After Agonizing over how to finish the floors (financially and conceptually), we decided on a white wash. This was the brainchild of Justin, a welcome alternative to my possibly ill-advised idea of a red floor. We had a lot of conflicted emotions about painting it, covering the wood (as crappy and water damaged as it was), but...
...after 1st coat of primer we were in love. Glossy gorgeousness and mostly of all, sealed and CLEAN.
The new white floor is paradise, or half paradise until we move all our possessions on top of it and do the other side.