We have been wanting to rip out our carpet in our livingroom and put down wood floors for YEARS now. Well, we were all set to order the wood, but now I am getting paranoid about the finish. We live in a condo (concrete subfloor) , so that means we have to go with a glue-down or floating (snap-into place) installation. We decided we want to do floating, so that we can eliminate the toxic glue fumes. HOWEVER, all the floating floor seem to come pre-finished...with "Urethane w/ Alum Oxide" -- how bad do you think that would be for our family? Anyone have any ideas for other options--that would work over a concrete subfloor?