Cool front-end with Jquery and More

10 Simple and Clean jQuery plugins
Google+ Styled Buttons
Portamento.js
Scrollbar e scroller
Jquery-waypoints
10 jQuery Plugins to Enhance your User Intefaces
Topbar message
JQuery Floating Message
jQuery Text Animation
Jquery Sidebar Menu (even top and bottom menu)
jQuery Sliding Message Plugin
jQuery Confirm Plugin
jQuery Easy Confirm Dialog plugin examples
**** COOL **** Boxy – Facebook-like dialog/overlay, with frills ******
Modal Delete Confirmation V2 Using SimpleModal jQuery Plugin Demo