You need to find out what type of 3D technology the PS3 uses. Whether its Shutter, interlaced or polarized. Then you can base your monitor purchase from that (make sure its HDCP though).
I got the Zalman M215W
http://www.zalman.co.kr/ENG/product/Product_Read.asp?idx=384 rather than one of the 3D vision 120hz monitors for the following reasons:
1. No ghosting. Also less eye strain and headaches compared to Shutter technology aparently.
2. 1080p and HDCP compatible (which means is Blu-Ray 3D ready)
3. Compatability with all existing 3d drivers (Nvidia, Tridef and IZ3D). The latter 2 actually have better 3D support due to more games being supported and with Tridef you can add 3D support to any old DX9 game yourself by creating a profile and messing around with the settings.
4. Point 3 means I'm free to go back to ATI should I choose to in the future and still have 3D.
5. Glasses are included (you actually get 2 pairs) and cheap to buy if you want more instead of having to buy them seperately with 3D vision and you can get extra pairs for very very cheap (polarized 3D glasses). So you can have other people watch films or game with you in 3D for next to nothing.
From what I've tried of 3D vision and comparing it to what I've just got its just as good if not better in some instances (especially for gaming). Pro evolution Soccer 2010 in 3D using the Tridef drivers is just
. With the Tridef drivers you can also watch any old 2D video in 3D with the conversion software. It actually works suprisingly well. Obviously not as good as native 3D stuff but it adds a good amount of depth to old films.
As for the quality of the monitor in 2D. Yeh 120Hz is better but the Zalman monitor is a high quality 60Hz monitor.
3D vision isn't the only good solution out there if you want 3D on your PC.
I'll be doing a proper review later in the week with pictures (if I can sort out my camera) and screenshots once I have time. I'll be posting it here and on another 3D gaming forum since I seem to be the 1st person on the internet to have this new model :lol .