Live slide show

I have a Canon 40d with a wft-e3 wireless transmitter attached. I wanting to know how to get the pictures I take to project to a slide show dynamically. Is there any type of software that will do this? I am working with a Mac Book Pro 10.5 OS. The best way to describe what I want to be able to do is to use the screen saver functions on the mac as an example. You know how you can go into system preferences and select a folder with pictures and have that as your screen saver? Well, I want to be able to shoot pictures on the fly and have those pictures sent wirelessly to this folder and have the screen saver update automagically and then have the screen saver projected out onto a screen. Is this possible??????? Please help. Thanks