Illustrator CS5 for Web Design Interface.

Yes, you read correctly. To find out how, read http://www.smashingmagazine.com/2011/01/17/productive-web-design-with-adobe-illustrator/. Thorough explanations and even downloads to get you started. No time like the present. Take a look now. Have you used Illustrator as your interface design tool yet?

As I am grading your screen captures, I am adding links to some of the sites that I think may be of help to you.  Johnny sent me to this one http://designinformer.com/designer-do-right-now/
and from there I selected a few more. 
http://www.rumblingskies.com/blog/?p=46

Color management in Photoshop for the web. Use sRGB. Do you use this or another one?
http://www.noupe.com/photoshop/preparing-photoshop-files-for-web-developers.html

Preparing Photoshop files for the web. Would you agree this article and some additions from the replies?