It's not easy to do Scrum and agile development in an agency. Most customers aren't used to the process, and how can you manage expectations while finding good solutions in a process that both your technical team and the customer will appreciate? I'll show you how we handle this in Reload, going from early estimations, to wireframes, breakdown into user stories, estimation hereof and the day to day workings of Jira and Greenhopper, our weapons of choice.
Reload is a Copenhagen based Drupal specialized agency - find us at www.reload.dk.
Disclaimer: I'm not a designer, so I was heavily inspired by the design made by Brandon Mathis' great presentation about SASS: http://www.bl-litho.com/imathis/sass-compass-the-future-of-stylesheets-now