Today WebResourcesDepotÃƒâ€šÃ‚Â realeased set of web application buttons. The button set isÃƒâ€šÃ‚Â nice and has a good look. This Set contains a PSD file with well grouped layers. You can easily create new buttons by duplicating or editing the current ones.
Icons used in the buttons are the famous famfamfam silk icons. You can download the icon set from their site and generate more buttons with the set.