Hopefully some of you out there reading this are techies and can suggest a solution for me.  I’m putting a 37″ LCD in my office, and I’d like to optionally be able extend my desktop onto it.  The problem is that I am already running two monitors using both DVI ports on my Foxconn 512MB GeForce 7950GT video card.  So there are two solutions, one being better than the other that I’d like to figure out the best and most cost effective way to figure out.

1) This is the most optimal solution.  I’d like to add a third monitor and be able to extend my desktop onto it.

2) If I can’t do the above, or it’s not cost effective, I wouldn’t mind just having a copy of the 2nd monitor on the 3rd screen.  So whatever is showing up on my 2nd monitor, is also identically showing up on the 3rd.

I’m assuming the way to do this is to get another video card in order to obtain another output.  If so, does it have to be the same card (I can run them in SLI mode)?  Or can I pick something cheap up?  If it has to be the same card, I’m worried about power consumption and heat.  I have an Shuttle XPC case, which is a small-form factor case.  It’s extremely tiny, and not sure if it can handle the heat or power of a 2nd powerful video card.  Here’s my specs that you may need:

• Shuttle XPC SD37-P2-BK-V1 case/motherboard/power supply
• Foxconn FV-N79GM3D2-HP video card

Any thoughts?  Post your comments below.