One of the problems common in starting a scrum team is just getting your tooling in place. You can find many tools to handle the sprint process, but what about the meetings? Most groups wind up putting together some sort of document repository and treat their meetings just like any other. In scrum, that means having a predefined structure for the meeting and having someone watching the clock to keep things on track. It's also difficult to keep things moving along when you have a distributed team.
Enter Sensei. A great utility to keep those meetings moving. Check it out, it's free. It makes it simple to jump right into your retrospective and get right down to business. You'll come away from your meeting with a well organized plan for improving your process in your next sprint.