Buy Rider -- unlimited within one enterprise network 3.1 full version
US$ 99.00, EU€ 62.68, GB£ 50.45, AU$ 106.89

Publisher's Description:

Rider measures network performance by sending test data between any two PCs.  Rider can measure:

• Available bandwidth,
• Response timeVoice and video,
• Estimate voice over IP mean opinion score (MOS) or R-value scores.

Rider's unique web-page user interface makes network monitoring as easy as browsing the web. You can save and print the results, bookmark tests, and even e-mail tests to other people.  You can even paste Rider test bookmarks into your own documents, making a master web page of all your organization's most important network tests.  With Rider you get most of the benefits of the big-ticket network performance management platforms but without all the headaches and at tiny fraction of the price.