Do I need glasses receivers on all displays?

[laggerific]

I'm considering Nvidia 3D surround using the ASUS 27" 3D vision 2 monitors, but I have a few questions.

Do I need separate glasses receivers for each display? How does 3D look in the periphery, when you are focusing on the main screen?

[tancients]

Only the center monitor needs the receiver.

I'm running a 2420TX + 2420T x2 and it works fine.

As far as appearances go, the 3d works decently enough but the borders on the monitors cut up the 3d a little so depending on what you're playing/looking at it might be odd at the edges.