Cabling Problems while installing 5.1 Surround in my Rig

[GuideMe002]

Information:
My Graphics Card slot have
-3 Non Occupied Display Port
-1 DVI Currently Occupied
-1 HDMI Currently Occupied
Using 2 Monitors atm.

i want to install My Home Theater 5.1 Surround but it only have HDMI so how do i plug it on my Rig. I cant sacrifice my 2 Display for this surround.
Any solution guys? 

[poopcorn]

display port to DVI and free up the HDMI ?

use one of your A/V receiver video outs for your monitor  ( GPU to A/V to monitor and DVI to monitor and use the remote to switch the sound single on the receiver ) ??? but u probablly cannot have the tv and monitor on at the same time but u should have audio?

hope this makes sense and i said it somewhat correct lol.