Been using Basecamp for almost 2 years. We were satisfied but we are currently looking for something specific like an accurate time tracking software and found these alterantives:
http://www.timedoctor.com/blog/2011/02/02/43-project-management-software-alternativesFound lots of alternatives in that link being compared at each other. Will still try to use them with their free version so I can evaluate if it's really a good time tracking software.
