I did this in my last consultant project, and it turned out well but with some difficulties. Before, I photoshoped the webpage (main page, and maybe some thing

I did this in my last consultant project, and it turned out well but with some difficulties. Before, I photoshoped the webpage (main page, and maybe some thing else) and then meet with the client to make the modifications, so that ,with the design done and closed, I could keep coding to finish the page. This turned out by the client in like huge focus on the design asking for lots of changes because they couldnt really imagine how it was going to be in the end. Ultimately, doing it on reverse turned out to be more revealing and useful. Fist map the pages of the site. Then html prototype all of them with simple styles. The hard part is explaining the client that this styles have nothing to do with the final design of the site, and that its all about structure of it. After the changes, the website is pretty much done in terms of big changes, so it gives you room to code knowing that bit less of the structure will change. Then at the end, I do design and iterate with the client until their happiness.