There are a few sources hinting at a large death toll today. This was posted by Rod Dreher on National Review Online last evening:
BODIES, LOOTERS [Rod Dreher]
I finally got through to my family down in south Louisiana today. They live just north of Baton Rouge, on high ground, and had no damage, other than fallen trees. But they have no power, and don't know when they'll get it back, so they're boiling in the late August heat and humidity.
Still, my sister said they would never complain, given what people are suffering not too far away. She had little idea of what's happening, because their TVs don't work. It's probably just as well. I heard from a Louisiana National Guard source that there are bodies everywhere in the far south, but the authorities aren't publicizing this.
I don't know if that means "thousands" dead, but, given Gov. Barbour's remarks last evening and this morning, it would be no surprise.
Another factor that could be limiting media reports of the death toll is the banning of news helicopters from the area. What you can't see, you can't report.