Oh man, this whole situation is getting very hairy right now. I hate the whole premise of religion in times like this. This whole thing is based on religious infighting.
I support Israel, not just as a jew (culturally only, I'm an atheist), but as a sympathetic observer. I have friends and relatives in Israel who don't wholeheartedly support military action in this case, but realize the logic of those who do. Israel has been jerked around by all of it's neighbors since its inception (with the recent exceptions of Egypt and Jordan). Sure, there is a logical point made by palestinians that the area is their homeland. Israel has been willing to give over control of nearly half of their total area to Palestinian provincial governments. However, when the palestinians elected Hamas, the Israelis made it absolutely clear that state-sponsored terrorism was not permitted. Hamas ignored this warning and continued to allow attacks on Israeli soil. When one sovereign area attacks another, that is called an act of war. The Israelis have limited combat as much as they could in Gaza and the West Bank, but when a terrorist blows himself up in a crowded marketplace, there are reasonable grounds for a reprisal.
Hizbollah has done the same thing. Hariri and his government claim that they cannot control Nasrallah and his merry band of terrorists, but this is their responsibility. Lebanon has made huge strides in the last year. They've ejected the Syrians and set up their own government. They must now do the just thing and prove to the world that they are a nation worthy of international respect. If they cannot rein in the terrorists within their borders, they cannot be taken seriously as a nation. Israel should stop their attack, but Lebanon must stop those who attack their powerful neighbor to the south. Only when there is a cease-fire can there be any talk of peace.