AMD 6970 cabling frustration

I need help figuring out how to cable this system:

I have 2 x 6970 graphic cards in my new supercomputer.
They are set up in crossfire.

Both have 2 x DVI, 1 HDMI and 2 Minidisplay ports

I have the following screens/TVs

2 x Samsung Syncmaster monitors (1920x1080)
HDMI and DVI input

1 x Sony Bravia (1080p)
HDMI Input

What I want is to use the 2 syncmasters a side by side monitors. The Sony TV goes in the other end of the room as a normal TV. I want to watch movies on the TV, that runs from the PC, so the connection to the TV should be via HDMI for sound. I was thinking of the tv as a 2nd extend, so I could just drag the player to the screen, maximise and watch.

I had this setup running yesterday

Primary: 1st Syncmaster in top graphic card DVI slot
1st Extend: 2nd Syncmaster in top graphic card DVI slot
2nd Extend: Syny TV i bottom graphic card HDMI slot

But today when I restarted, the crossfire kicked in and now I cant use the ports of the lower card. Moving the TV to the top cards HDMI slot does not help. It says I can now only have 1 extension. Either the 2nd monitor or the TV, but not both.

Now, what to do? I read somewhere that on this card you need to use one of the minidisplay ports if you want 3 screens? But before investing in those I would like to have it confirmed.

Also, If I want sound, I need HDMI, not Minidisplay, right? So how to connect both TV and one monitor with HDMI when only 1 HDMI remains using crossfire (The monitor has built in speakers and I don't care about the sound quality)

Advise, please?