HI expanding the first post about Themes, I have found sites that have nice themes:
1) Nices themes and also some interesting widgets - http://wijmo.com/theming/
2) JQuery UI Bootstrap Theme - http://addyosmani.github.io/jquery-ui-b ... index.html
3) Absolution JQuery UI and JQuery UI Mobile Theme - http://www.michaelvanderheeren.be/archives/382 (NICE!!)
4) Delta theme - http://blog.kiandra.com.au/2012/09/delt ... -ui-theme/
Demo: http://kiandra.github.com/Delta-jQuery-UI-Theme/
5) iOS jQuery Mobile Theme - https://github.com/taitems/iOS-Inspired ... bile-Theme (NICE!!)
Demo: http://taitems.github.com/iOS-Inspired- ... ile-Theme/
6) Aristo jQuery UI Theme - https://github.com/taitems/Aristo-jQuery-UI-Theme (Very NICE!!)
Demo:http://taitems.github.com/Aristo-jQuery-UI-Theme/
7) Selene Theme - http://gravityonmars.github.io/Selene/
8) Not directly for JQuery UI, but aplies gracefully and it can be adapted for the theme roller: http://uniformjs.com/
*This Is not a theme but is worth to have it include din the component suite: jQuery-UI.toggleSwitch() - http://taitems.github.com/UX-Lab/Toggle ... index.html