A major high five for Fireworks. It's like the "object"-ness of InDesign and the "graphic manipulation"-ness of Photoshop had a beautiful baby.

Fireworks' master page is a great way to keep the skeleton of your site consistent across mocks.

I'm a huge fan of using Fireworks for mockups. A heartily second (and third, and fourth) of this recommendation.

Absolutely agree. Initiative should be software agnostic. Currently it looks like "Use separate css file instead of inline styles to control you table layout and developers will love you". Also, who gives developers PSD files anyway?