Simple CSS3 Buttons
Simple, easy to use, and easy to customize buttons using some nice CCS3 features.
Adding and modifying colors is as easy as specifying colors (hex, rgb, etc...) for the default and hover states, as the gradients are semi-transparent and work for any color.
Feel free to use on projects, but credit to Corey Worrell (http://coreyworrell.com) would be great.