First off - I think it would be the US that would hit them first -
http://www.timesonline.co.uk/article...522978,00.html - theyve already said they would although Israel would definitely be there too
Second - until the plants actually started operation there would be no "fallout" even if the "fuel was charged" (the fuel comes in huge bundles that are around 60 ft high and 12 inches diameter) - and the correct term would be loaded into the reactor - but until the reactor is run the fuel is not very radioactive - less than whats naturally in your drinking water.
Third - if the plants actually operated (which is highly unlikely given the US and Israeli stands) even direct hits on the plants would not cause a spread of radioactivity like experienced with Chernobyl - the fuel is encased in so many barriers that are covered with missile shields nowadays (unlike the Chernobyl plant) that a release of bare fuel is almost impossible - plus the US and Israel would have much easier access to the control systems that would put them out of business quicker and wouldnt need to tempt fate going after the fuel assemblies.