SolarWinds Free tools

Just received an e-mail outlining the free tools offered by Solar Winds. I don't know how many net admins actually use the Solar Winds Suite. I know I find the cost of the tools (most of which you can find opensource equivalents for) to be exorbitant. However they do have a couple of utilities they offer for free:

• NetFlow Configurator v1.0
  Remote configuration utility for collecting Cisco® NetFlow traffic data
  
• SolarWinds TFTP Server v9.1
  
• SolarWinds Advanced Subnet Calculator v9.1