OCW has posted a review on the Gigabyte GA-M57SLI-S4 AM2 nForce 570 SLI mainboard

Gigabyte, one of the top tier mainboard manufacturer releases it flagship AM2 product based on the Nvidia nForce 570 SLI chipset. This new mainbaord supports the new AM2 socket 940 processor with DDR2-800 support. The mainboard supports 4 DDR2 DIMM slots, 6 SATA II ports NV RAID ports supporting NV 0, 1, 0+1, 5, JBOD. 10 USB ports 10 ports (6 by cable). It also supports 2 x 8 PCIe lanes sfor SLI operation. Other features include 1394 and GbE(Marvell 1116PHY) and 8 ch HD audio (ALC883 8 Ch HD audio). This mainboard uses a silent cooler, so no more noisy fans. The board is also Windows Vista ready and AMD Live! Ready.

Gigabyte GA-M57SLI-S4 AM2 nForce 570 SLI mainboard Review