After kuler.adobe.com has generated some buzz, here are some more nice color resources. http://www.modernlifeisrubbish.co.uk/article/web-2.0-colour-palette This blog post gives an overview of pretty web2.0 colors. http://www.colourlovers.com/ Similar to kuler, you will find user submitted and rated color schemes at colourlovers. Enjoy.
My eyes glaze over when I look at this. Definitely a great CSS menu, get it here, see it in action here. For more CSS menus, you go and get 77 of them.
Free buttons for your website, available as JPEG or even Illustrator file. Enjoy.
Over at Blogging Tips, you will find a perfectly easy tutorial on how to integrate adsense in your WordPress templates.