Dell U2311H vs U2211H for eyefinity

[1-anh]

I am considering between the Dell U2311H and Dell U2211H. They are almost identical except the screen size 23" vs 21.5", and the max brightness 300 cd/m2 vs 250 cd/m2. Here in canada, on occasional sales I could get 3 U2311H for $740 after discounts and rebates or 3 U2211H for $610. Does anyone have thoughts between these two for eyefinity?

 

[Snowdog]

A friend has the 21.5" and it is quite low on brightness. After calibration it maxed out a 115 cd/m2.

I would go for the 23" it has quite a bit more brightness reserve.