I am not going to be much help with the 8GB cards, but I have been using Ridata cards in the 2GB, 1GB and 512MB flavors for quite a while with my D200 and D100 and they have worked fine for me.
I am not sure about putting all of my eggs in one basket on an 8GB card though, if something gets corrupted you could possibly lose a bunch of images.
I know how you feel about the lack of replies, about two weeks ago I posted some portrait samples in the Lighting forum and got only a few replies. I was hoping for more feedback. I guess we are suffering from the Rodney Dangerfield syndrome, "we get no respect".
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Bob
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