nVidia released a pared-down version of its nForce 680i chipset this week that's supposed to put some more power in the hands of the mainstream market. They took out a couple of features, but the chipset remains largely the same. Reviews were pouring in yesterday & Monday. Here are a few:

the [H]
the TechReport
LegitReviews
Hexus
TweakTown
Motherboards.org
Anandtech