6800, which brand?

[SA66]

I decided to go with a 6800nu, or a GT 128mb. Was looking at the Gigabyte, is it good and does the heat tube cool sufficiently. Opinions on other brands are well appreciated.

[Miguita]

I'd go with any card that's based on nVidia's reference design. These cards seem to be the safes ones to flash to GT or Ultras. Plus alternative cooling (like nVsilencer) will be more likely to fit.

[SA66]

How can you tell if it is based on nVidia's reference design.