Design/Skin existing website

This is a design/skinning project for an existing web based task management tool.. All/most of the functionality is in place.. im looking for the css and styling to be cleaned up and made to look cleaner for the general population. Im looking for something simplistic and web 2.0 ish - not flashy at all, but clean . Optimally, styling would be pure css with little or no images. Only icons where deemed necessary. Please note currently we are using jQuery UI - id be just fine with keeping this UI styling and just normalizing the styles across other areas of the website, ie login/registration/home page, etc.. See attachment for login info and details. PLEASE provide samples of existing UI projects you have done. Please do not send full website urls, I need to be able to see your style on UI/backend. Add to Project Description