Nice buttons we’ll never be able to use. Even the latest browsers don’t support most of the features of CSS3, and look how long the old ones stick around. I still have to program to IE6 and you’re telling me about cool CSS3 buttons? Great, maybe I can use this in 10 years.

Thanks for this. It is disappointing that they are not supported by the older browsers but they still work. I suppose its just a matter of time before we can ditch the images and use this technique full time!

All well said, this cant make do for now! we still have a lot of internet users surfing the net with old browsers.
You could try out this link for a jQuery shadow effect
http://eyebulb.com/dropshadow/