with any monitor you can use anaglyph
120 Hz is needed for smoother image — eyes less enjoyable. technology 120 Hz implies active glasses www.nvidia.ru/object/3d-vision-main-ru.html
LCD is Monica, you can use the CRT for 100 Hz less comfortable
another thing is that 3D only games — most of the films shot with only 3 plans of depth — almost a pseudo 3D
they even take off on a conventional camera, then the computer "squeeze"
and go to a big Mall and try 3D system in their eyes, don't fully trust journalists :) try it yourself