There are a few different options for this. The free options are to use something like www.slide.com or www.photobucket.com to create slideshows that you can add to your site. Another option would be to purchase a software program like CoffeeCup's Photo Gallery. And finally, I can create a slideshow for you, however, you would not be able to change the photos on your own. I can include 6-8 photos (all in the same orientation: vertical or horizontal) for a $35 fee.