Planbox is a business-centric tool that's a good fit for anyone (say, a consultant) who wants to track the cost benefit of an effort. You can assign dollar values and weighting points, in addition to standard importance rating for tasks. File attachments (another must for almost any PM software) are a tad hidden, but they are there.
Ken Hardin is a freelance writer and business analyst with more than two decades in technology media and product development. Before founding his own consultancy, Clarity Answers LLC, Ken was a member of the start-up team and an executive with TechRepublic.com and ITBusinessEdge.com.