A free pure css3 gallery, however if you want to learn how it's made, you can buy the screen cast which covers the whole development process.
A detailed tutorial from Smashing Magazine, they discuss how to create an infinitely looping slider of images using only CSS3 animation.
A pure CSS3 slider I found from cssdeck. The transition effect is quite fancy.
A quick and simple CSS slider from CSS-Trick.
A tutorial by Joshua Hibbert.
A tutorial by Simon Picos, hosted in CSSDesk also.
Instead of blindly following someone else's code, you can learn how to utilize :target to create a slider with Joshua Johnson's tutorial