For viewing only, you would need to make a DVD slideshow out of the images. But at the same time, anyone can still capture the image by using the screen capture on the computer.
If you are going to give the client images to use on her myspace and or photo frame, you just need to resize them. Are you actually giving them the images, or selling them the images, or selling them a release to use the images for these purposes?
I guess I am asking for more clarification of what you plan to do with the images, do you want the customer to have them or just view them??