Hmmm... I gotta disagree on some points here.
Israel can't take Iran? I'm afraid that they could do so most handily. As they've demonstrated, Israel pretty much does what it wants over there,
and taking out one of their neighbor's nuke plants has been done. (Yes, they've got the T-shirt.)
Iran is indeed a proven state sponsor of terrorism. At this point in time, it probably holds a greater numerical proportion of terrorists than any
other country. (With some serious contention by Chechnya and Syria).
Where are you getting your intel, Russian?
Iran does indeed have good relations with Russia and China. Being as the US is decidedly not one of their supporters, that kind of left them with a
short list of people to turn to.
Especially when the 2 countries on that list are in high demand of Iran's petroleum, which is a good close source for both countries, and is there in
abundance. Supplying this commodity makes for unrealistically good relations.
Which brings us to another point. Iran sits on top of some of the most plentiful oil reserves on the planet, yet they need nuclear power? That's
kind of like saying you have a near unlimited supply of coal to heat your your home, but would rather throw phosphorus in the fireplace for heat
instead.
I don't think there would be quite the conflict between US/Russia/China that you think. Honestly, Russia and the US are nearly on the same page with
the war on terror, and neither would be too upset at seeing Iran's government toppled. China I don't think cares much for Iran's government either
way. All of this being contingent upon a deal being struck that would ensure that the oil from this region would keep flowing to all involved parties
(especially if it were to be provided more or less for free, for a limited time). I could see this deal being struck behind the scenes quite readily-
not by Israel, but the the 'big 3' amongst themselves. Better for all to profit than for all to lose out in some fashion or another. This could,
of course, be instigated by Israel's proposed strike, but I don't think they would be interested in the political aspect in this manner-only
eliminating the threat. More and more conflict will be centered around the oil in the years to come, and so long as those with the biggest straws in
the glass can keep drinking, they're going to be satisfied regardless of who gets knocked off in the meantime.