So, finally Microsoft released the expression interactive designer tool to the public. I have played with this for some time now and the power that is provided in this small 6MB package is just plain magic. This is the solution for the really cool UX creation.Now just be careful, don't repeat the blinking and flashing web syndrome :).Read more about the Expression suite that includes:

• Graphic Designer (Acrylic)
• Interactive Designer (Sparkle)
• Web Designer (Quartz) Not yet available