hi, i ´ve found a realy nice timetrack tool for basecamp here: http://compuccino.com/tools/timetrack,
compuccino time track is an Adobe AIR application that brings together people, projects, tasks and time. The time for each activity can be measured, no matter if you are on- or offline. The ability to run multiple timers caters for a lot of flexibility thus making it possible to switch between tasks easily. The recorded times can be submitted to project management software Basecamp with a single click. The abbreviation AIR stands for Adobe Integrated Runtime and enables applications to run on a variety of platforms (OS X, Windows, Linux). check this out.
