is there a way to create a fisheye effect in photoshop?
CS thing? Its called Spherize Filter in 7 under distort. Probably not as good as the real thing but you can bump up the canvas size since you cant set where the sphere lands.sort of.... go to filters > distort > lens correction
that'll pop up a dialog box that will have "Remove distortion", but I doubt you'll get the effect ur looking for.