Fossil fuels are abhorrent to me, and I'm rather indifferent about modern nuclear power in comparison.
I think the best reason to oppose nuclear power (and most especially clean fusion nuclear power, if that technology is ever developed) is that it supports the growth of our environmentally destructive economic system. What we call "productivity" today is directly proportional to the damage we do to the earth's environment and the human spirit.
If we must have cars, then electric and hybrid electric cars parked under solar awnings to recharge during the day seem like a pretty good deal. The idea seems to terrify the fuel industry. Imagine people who commute back and forth to work all year without ever having to stop at the gas station. You end up with a situation where even medium sized cities have only one or two fuel stations right next to a freeway ramp and nowhere else.
There's not really any comparison between computers and energy technology. We don't really know yet how far we can push information and computer technology, and the quantum limits are still far beyond our reach. But the laws of physics regarding transportation, lighting, chemical synthesis, etc., can't be pushed beyond well established thermodynamic limits, and with efficiencies of thirty percent and beyond in many of these technologies the cost of the equipment becomes the greater concern.