From JPost:

Among the ideas being discussed was a “substantially beefed up UNIFIL” force to be made up of German, Italian, Spanish and Australian troops that would move south to the border with the Lebanese Army and deploy where the IDF moves out. Another idea was for a French force to accompany the Lebanese Army. Senior sources in Jerusalem said, however, that there has been a major shift in the French position over the last week, with French President Jacques Chirac hesitant about committing French troops after seeing the difficulty Israel has had with Hizbullah over the last month. France was initially the major force working for deployment of an international force.

More (let’s hope this deal is worth it):

The security cabinet’s decision to widen the operation Wednesday, dependent on a final okay from Olmert and Peretz, led the US to publicly disagree with Israel for the first time since the war broke out.
Following the decision, White House spokesman Tony Snow said that moving deeper into Lebanon did not correspond with American policy.
“We want an end to violence and we do not want escalations,” Snow told reports at President Bush’s ranch in Crawford, Texas.
According to diplomatic officials in Israel and in Washington, the US was concerned that a widespread military offensive on behalf of Israel could undermine attempts to reach a new agreement between the US and France over a UN resolution.