I have six GigaByte tri-fan HD 6950's that I'm about to put up for sale. They are all less than a week old. All overclock stable to 900MHz except for 1 which is stable at 850MHz. As I understand it, these can't be unlocked (most new ones can't), but they each pull 350 mhashes/sec at 900 MHz (the one at 850 pulls 335 mhashes/sec) which is very close to what 6970's do from what I've read.
I would sell them each for 19 BTC shipped to Finland, or I could do some kind of discount for multiple (plus shipping would probably be cheaper to ship together).
I'm fairly new on this forum, but I can do whatever you'd like to prove my legitimacy. I can provide my ebay account so you can see my feedback, I can take a picture with the cards and my username, you can call my personal cell phone, etc, or whatever you would prefer.
I also have some other hardware I'm looking to sell if you're looking for anything else as well.