Websense, Symantec, or others?

I admin a small office of 50 employees. We have a new HR Director and she wants to enforce internet security. In the past we had used Websense to establish policies, rules, and track employee internet activity and behavior. Being a non-profit, we, like everyone, were hit hard by the economy and even though they were very good, the software was also very expensive – comparatively.

Should we pony up the money for another license to Websense, or are there alternatives? I do not want to put up or install Linux anything. It has to be MS Server2003 complaint software.

What are recommendations? Also what are ?stay-away-from?s? ?