Fir flooring

The other day I decided to take a quick peak under the carpet and see what I could find. I found hard wood floors! Well sort of. They seem to be fir, which is an odd choice for flooring because it is on the soft side of hard. I learned this morning that I can't sand them down because they will get gouged. A regular sander won't work. I have gotten half way through ripping out my ugly carpet, and the floor is quite pretty, but could really use some TLC. Does anyone out there have any experience with this type of flooring? I'll be heading to Home Depot soon to ask them. I'm hoping that I could wax them up real nice and they will do for now, but eventually I think they'll need more love.

Also: anyone need a perfectly good, almost new piece of carpet measuring 30'x15'? It's got a real nice pad too. Just not my taste in color. It's multi colored, mainly blue. Lemme know, it will probably end up at Habitat for Humanity.