It looks like there are several mobos with dual 2011 v3 sockets:
- Gigabyte MD80-TM0 ($660)
- SuperMicro (has 2 starting at $340)
- ASRock (4 versions,starting at $360)
- Asus Z10PE-D8 WS ($579)
Any recommendations, or brands to stay away from? This would be a dedicated cruncher, 1 PCI-e slot is fine, so long as it fits a full length, dual-wide GPU.