Sick of "Web 2.0" style buttons and badges yet? Me either. (Or me too, depending how you answered.) However, one of the problems I have with the whole silky smooth movement is that everybody uses PhotoShop to do their work. There's nothing about that style that can't be done in vector (and for free) using the great open source program Inkscape.
Here's the proof... (Click for a bigger image.)
These graphics could be "good to go" as SVG files on a web page, dropped into Flash, or converted to JPGs or GIF for traditional HTMLing.
Here are the source files of the images above.