Although I am not helping with your thread or question, would like to make a note that it's quite a waste to consider light wooden flooring as the current tile floor looks good (large-sized tiles). For wood flooring if I understand it you have 2 choices that are to remove the existing tiles completely and lay wooden flooring, or to lay wooden flooring over existing tiles. The latter seems to be the popular choice as it saves a lot of work and is cheaper. However, I was told by a friend that went for this option is there would be a slight squeaking noise at certain areas of the wooden flooring when you walk over it. Just make sure you get a reputable or good installer for the wooden flooring if you are you sensitive to quality and workmanship. Not too sure if good workmanship will guarantee a completely solid or quiet flooring though as the bond between the wooden pieces and existing ceramic tiles is just glue. Any unevenness with the existing tile flooring and it would be transferred to the wooden flooring.