Copernic Desktop Search

Those of you who have not yet come across Copernic might find it worthwhile clicking on to

http://reviews.cnet.com/Copernic_Desktop_Search/4505-3684_7-31087427-2.html?tag=top

It will not search the web for you, but it is pretty good at finding files you thought you had lost. You can download it from this site, and it will not eat too much into your memory.