Because I'm a fan of the new Google UI seen in Gmail, Docs, Calendar, etc, I decided to reproduce the look of these new UI elements for my own personal use.
This is being tested in the latest versions of Chrome, Firefox, and IE8+.
http://todc.github.com/css3-google-buttons
Public domain: http://unlicense.org
Inspired by Michael Henriksen's CSS3 Buttons, Twitter Bootstrap, and of course, Google. Icons from glyphicons.com.