To me, it's worth a little $$ for Gena, because of the ease of use. You just select the pictures from your folder and there you go. I don't have time to click on each of my pictures to get the time/date stamped on there. And even for photos I won't keep (does, little bucks), I like to skim through to look at the times for scouting purposes.Here is a link from Real Deal you can purchase (forget but think it is the same one)-
Or why not use Infraview? It's free and after selection a pic. you chose an are and then go to edit and chose insert text onto image and then chose the font, size and color.
If you need a cable for downloading to a computer let me know and I can send you one along with the cd to download the programs (I'm assuming it is the same as the one used on S40's, maybe someone can let me know if not as I've only used S40's and the S600 I got went to my daughter).