[NCLUG] Dual head video under linux?

[James Cizek]

  Had anyone on the list gotten dual head video under linux working?
  We are going to buy some new video cards to get dual head going
  and I would prefer to buy a single card with dual head capabilites
  versus two cards if possible.  A quick google search indicates that
  Matrox G450 G550 and HF cards are all supported.  Has anyone got 
  anything like this working that can offer suggestions/warnings/advice?

  Thanks.  
  -James
  james at colostate.edu