http://blip.tv/djangocon-europe-2010/idan-gazit-design-for-d... (great overview of the major design aspects - nearly 1hr)
http://media1.kadavy.net/allthefontsyoulleverneed-kadavy.pdf
http://www.youtube.com/watch?v=4X4f83C8ANg
http://www.youtube.com/watch?v=QkJ6fPPRA5Q
18min http://vimeo.com/1542721
http://journal.drawar.com/d/we-do-not-need-you-to-design-any...
Go here: http://themeforest.net/category/site-templates/admin-templat...
Purchase a theme for $20 that would take you weeks to design and more time to slice and code. Get profitable, then hire a professional designer.
Initially it will feel like you're cheating, but over time you will learn the patterns and develop your own style.
EDIT: This couldn't have arrived at a better time - https://postgres.heroku.com. Just look at that beautiful design. A lot to be learnt (and copied!) there.
http://www.amazon.com/Web-Designers-Idea-Book-Vol/dp/1600619...
Other options include Less Framework (http://lessframework.com/) and Twitter's Bootstrap (http://twitter.github.com/bootstrap/)
http://www.amazon.com/Design-Hackers-Reverse-Engineering-Bea...