What are you doing with them? Unless you're doing video editing, I might recommend downgrading to something smaller like 20-22". I'm working on 2 23" monitors and it's almost too big. Sounds strange, but I almost wish I had smaller monitors for my dual setup.
I recently left video editing. These days I'm more inclined to giant spreadsheets, plans, proposals and probably watching something/surfing on the 2nd monitor.
Currently I have a 20in sitting in front of me, and 2 of them might work. I'm just saying 23, cause I used to have 1 x 23in and I loved it. Maybe you're right...could be OD...