Pictures - where does my Mac store all the photos

My Kodak Easy Share camera connects and downloads the images to ... some undisclosed location. I used to always drag them out of the program it used and saved them to somewhere i could find them but as im handing this computer back i need to know where to find the Picture Library so I can remove any other photos of the computer.. I don't want dodgy photos going back to Apple! Might kill a tech if he saw those!

If they are in iPhoto then you need to open iPhoto, select the photos and export them. If they are not in iPhoto use spotlight to search '.jpg'.