Just looking around for some ideas and found these cute themes:
Here‘s another great lists of templates to use when you’re developing a web-app!!
Found this full-of-tutorial site about jQuery: jqueryfordesigners.com
Zoomooz is a cool js jQuery plugin you can create very impressive zoom effects on your whole page.
And it’s amazing to see what people did from this… a few examples (sites using it and crazy people creating even more crazy libs based on this)…
UPDATE: browsing around I found this awesome site too..