GUI Design

Can anyone recommend any good books/blogs/websites on the subject of GUI design and usability, I'm getting to the stage now when I'm finding it hard to present all the necessary options to the user in a clear and concise way.

>>26
You just answered your own question (well, kind of): if you pressed F1 (or something) and it showed documentation about the menu item you've selected, and made the menus easier to navigate, awesomeness would ensue.