There is now a sub $100 5,000 series video card available from ATI. According to the press release, a single HD 5670 has enough power to allow gaming on three displays using Eyefinity. If true, that is amazing. I will need to find a review that tests that assertion before I accept it as fact.
This release has occured at a very inconvenient time for me so I will not have enough time to get the necessary work done until Saturday. Perhaps by then there will be more than one HD 5670 model for sale on Newegg.