For some help on adding gadgets, be sure to check out the post Useful Gadgets to learn how to add them to your site. For an example of the Cooliris Gallery you can view my site 3sgraphics.com to see how they work.
It's really neat and can add a nice flare to your portfolio or just a nice gallery! With the option to expand your gallery full screen, allow you to keep your dimensions small but still allow others to view the full image with no lost of DPI.
Hope this is a good useful tips Be sure to post some of your work on our site to show case your proud work!