I'm setting up a new PC and Dropbox is pulling down a ton of files. I had to throttle the bandwidth for Dropbox down during my workday because it was interfering with my work. At night I removed the bandwidth limits, and tomorrow morning I will have to reapply them if the download isn't done.
It would be nice if you could define a bandwidth schedule: set bandwidth limits and the hours (and days of the week perhaps) when they apply. That way, Dropbox could help itself to unlimited bandwidth at night but throttle itself down during the workday.