Ran this test back in August for splitting the load:

http://www.dual-boxing.com/showpost....6&postcount=48

Like Khat said... I couldn't assign different monitors per game windows through WoW's settings using DX11 w/o the game
flipping out... it only worked in DX9 which seemed like a waste unless you were running a massive amount of characters. I
never got around to trying to force it through InnerSpace's configuration using DX11, though. As for SW:TOR, while in theory
it should work through InnerSpace's configuration (if there isn't an in-game option) I really have no idea how it will perform.