Storyboards / Wireframes

[doodab]

I basically need to sketch out the main screens and flow between them for a web application, I can do it using pen and paper but I'd like something a bit more presentable that I can circulate via email.

Is there an easy to pick up package for putting this sort of thing together or should I just hack some basic pages together? Some of the screens are going to be quite complex with tree controls etc so for someone who's 100% server side like me that could be a bit of a learning curve. I'm not looking at making decisions on which tech to use at this point, really just to illustrate the proposed user experience and get some feedback.

 

[BjornMorg]

Get 'Balsamiq' a great wire framing tool and the basic version is cheap and will give you all you need.

 

[administrator]

Yup, Balsamiq is good! Was sent this one the other day as well but not had need to look at it yet:
Mockups & Website Wireframes | ProtoShare