Wow - Nice motherboard! Right, where do i start!
Your motherboard supports SLI as ive just checked & you probably know that too, im not sure about your ram supporting SLI though, i couldn't find any reference that it does or doesn't support it and im painfully aware that - to fully unlock the power of an SLI configuration - the ram Must also support SLI...
So not sure on that one...
i have an old asus 9800GT (Nvidia) that has 1 GB of GDDR2 ram on it (only a meager 800Mhz) compared to your out dated graphics card and i also do the same - watch movies/surf/mess around in MS Office whilst gaming and though my card is older, i had managed to find another exactly the same online so now i have two.
- Using 4 screens at the mo, 2 screens per graphics card.
Im afraid graphic cards dont exist where you can connect up more that 2 monitors unless you willing to spend over £600/$965 for it! Well, saying that, there are a few graphics cards that can connect 2 monitors plus an S-Video output but the resolution of that connected monitor would be crap - something like 640 * 480 or a really low resolutions and i know you said you wanted the graphics card to do a good job of it, so this wont unfortunately...But...
With 2 graphics cards installed - you will have 4 ports for monitors like i have!!!
So you have 2 options from here...
1. Hunt down and buy another graphics card exactly the same as yours - because it is SLI ready also - you will have problems if you pair it up with anything close to the specs to another graphics card - trust me, tried combinations of 6 'almost' near specs as my one asus 9800GT before i hunted down another of the same graphics card as my asus 9800GT!!
{To do this will probably save you money as the slightly older graphics card you have will have dropped in price considerably !!!}
2. Go and buy 2 brand new graphics cards that are SLI Ready and have only HDMI ports - which this way will be the more expensive way to go but would ensure you get exactly what you want plus a higher ram speed of the newer graphics cards (GDDR5 !!)
Also a quote from the below graphics card about the DVI To HDMI Adapter;
"HDMI convertible output
Dual-link DVI convertible output supports Video/Audio signal integration through DVI to HDMI interface, which drivers resolution of a digital display up to 1920x1200 or higher"
Example 1 (SLI Graphics Card - 1 HDMI + 1 DVI Port);
http://www.msi.com/product/vga/N450GTS-Cyclone-1GD5-OC.html#?div=Feature
Example 2 (SLI Graphics Card - 1 HDMI + 1 DVI Port);
http://www.ebuyer.com/product/268472
{Roughly $402.24}
All graphics cards have only ONE HDMI Output like i mentioned before unless your willing to pay mega-bucks, you may even have to have that custom made, lol
Anyhoo, both those examples are the mid-to-high end graphics cards and both will work with your motherboard as the specs say "Supports NVIDIA® 2-Way or Quad-GPU SLI™ Technology "...
The 1st option to track down an exact same make and model of the graphics card you already own would seem the best and cost-effective way of getting yourself SLI'd up!
Before i go tho, not ALL Games will take full advantage of an SLI Setup so make sure the game also supports SLI or you will have 2 graphics cards in SLI configuration AND NO PAYOFF in better graphics as the game must also support this!
Right, im done with the script! lol
Really hope this helps you out!
Bets regards,
offtherails2010