I have seen the samsung 6000, 7000, 8000 and I don't think they hold a candle to the ln32b640 which is $799 at local stores. I have that TV in my man room. Now for my family room the a950 is on the way to my house. The only thing that came close to the A950 was the xbr8 and its a give and take with that tv. I got my 46" a950 for less than 2K via ebay and bought a square trade warranty. The cheapest I saw the XBR8 was about $2,300. I went with what cost me less, plane and simple because it was a toss up. My next option down was the LN40B750 or 46" I say the 40" because of low the price was on amazon. Also, the xbr9 was in the mix but I like the overall pop of the B750 compared to the xbr9. For some reason Samsung appeals to me more. They seem more colorful, bright, 3d, popping and to have better color accuracy.
So in my opinion, which took a long time of coming to, I would go with the A950. If you want to save a few bucks go with B750 which is also a great tv. The A950 was the best tv in the store when I was able to compare to the other tvs including the 6000, 7000, 8000 thin models (I should mention the 6000 line has dropped in price in terms of the 32" 40" but I still think the B750/B640 beat it). The picture is more alive (A950). It really has a wow factor.
I dare anyone to put a A950 led tv next to a 6000 - 8000 thin led tv with speedracer in blueray showing and tell me the A950 doesn't look better.