http://sites.google.com/site/samsimulator1972/home
Someone linked this over at SimHQ.
A systems simulation of the Volhov and Neva SAM complexes (SA2E Guideline and SA3B Goa).
Lots of buttons, dials and switches and an interestingly different 'angle'.
Currently a free Beta version worth at least a glance IMO.
(currently it requires a screen resolution of 1280x1024 which might rule out some LCDs).