[RandallBrown]

I have designer type friends who don't do the design in photoshop at all. They just do their design in html and CSS.

This has the obvious advantage that when you're "done" with your design, the UI code is already written.

Of course it's way easier to do things like adjust gradients in photoshop. I also assume that most people will be able to do things in photoshop that they might not know how to do in HTML/CSS.