Tina, you would not need to strip the floors because the sanding will remove any old finish. You can rent a floor sander from a rental store. You must be very careful and follow all instructions so that you do not leave grooves and marks in the wood, but I sucessfully refinished a dining room floor by myself using one of these sanders. You can then stain and finish the floor as you like. Be sure to also rent an edge sander (for the perimeter of the room which the regular sander cannot reach). It's hard, dirty work, but extremely satisfying. Also if you look down this bulletin board you will find lots of other hints and suggestions on floor refinishing. Good luck. I've just purchased a 92-year old house myself and have my work cut out for me too.