Canon Rebel XT Coolpix 5000 iPhoto
My gear

Canon s500

Canon 350D/Rebel XT

Nikon Coolpix 5000 (best birthday present ever)

Ikelite underwater housing #6190 Good to 200ft!

GPS: Garmin Foretrex 101

Image Gallery Software
Gallery Nice image gallery software.
Coppermine Another nice one.
GPS & Photography
Imbed GPS Data in EXIF tags of your images
Translation: Record your latitude, longitute and altitude in your digital photo.
GPS Photo Linker Free for Mac
Topofusion Windows $40 map app. Does photo links
GPS Photo Link$229 app. nice tho.
Earthquakemap
GPS Trackmaker Free windows - tracks, photo links, etc.
RoboPhoto$35 windows gps photo tool
Macdevcenter article