I would just like to say thanks to Lionel Spohr for the great time tracking product TimePanic. I originally came across this product a few years ago when reading an article on the Guardian.co.uk on low-cost time management software.
TimePanic is a great low-cost solution for individual time tracking (39 euros) and is available for Windows, USB Drives and Pocket PC.
http://www.timepanic.com/english/index.html
Check out the product.