title: What is a good program to test server load with X number of users?
body: <p>I have a PHP web application, and I want to test out the load when 100+ users are connected at the same time.  Is there a program out there that would allow 100+ virtual users to hit my webpage?</p>
  
  <p>I did find one, but it was $3000.
  I don't mind paying, but not quite that much.</p>