21:9 monitor maybe? You said you have room for the two 22" monitors you have already.
http://www.newegg.com/Product/Product.aspx?Item=N82E16824025066R&cm_re=lg_34um94-_-24-025-066R-_-Product
This will do the job of 2 monitors.
If you don't want 1440p, go with this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16824009554
Your system is fine. On the same level as ANY 970/290 system out there.
What would give you massive improvement in gaming xp is a gsync monitor.
I suggest you go with one of the following:
Acer z35 - 35inch, VA, 2560x1080, 144hz, gsync
Asus pg34q - 34inch, IPS, 3440x1440, 75hz, gsync
Acer x34 - 34inch, IPS, 3440x1440, 100hz, gsync
Or if not, wait for a 29" widescreen gsync... they are sure to appear in the next few months. And yes, once you try 21:9, you`ll understand the people who say "21:9 > all"