Buy one of these SL-DVI > DP adapters.
http://www.amazon.com/Accell-B087B-005B ... ort+to+dviThat will let you run your monitors with 3xDVI and 1xDP. Then use the HDMI to run the TV. When you plug in the 4th monitor, it will break the Surround setup. Go back in and reconfig Surround. Once you have that done, you'll have all four monitors running.
All you have to do is right-click on your desktop and go to Display Properties. Then you can select one "monitor" or the other and set it as the "main display". Works easy for me with both NV and AMD.