Thanks for the feedback guys. I agree 100% I should have raised pre, I just was mixing things up, this turned out to be a major mistake. My flop bet of 2K was to take the pot down there and then, thinking if he then comes back at me, he must have something. My thoughts on checking the turn was pot control, if I bet here and am called or raised I am definitley pot comitted, as my bet would have had to be at least 2k, but more like 3k.
So after a bet of 5BB and then a check raise on the flop, I am putting him on Jacks, this would fit how many people would play Jacks and then a flopped set. Physical tells I always find difficult, but I did give him a good old fashioned stare down, and he actually looked very strong.
So with 7.5K I am still very much in the tournament, a much respected APAT player told me earlier this year that you can"t win the tournament in the first few levels, but you can certainly lose it. ( That very player actually went out really early on the next table when his AK on a K high flop ran into aces - And I actually think that was also on my mind) Or I make a hero call, lose and am down to 2.5k, which is a long way back.
So discretion being the better part of valour I laid it down, only for him to flip A 2 o! I actually thought he played it great, and congratulated him on a hand well played. He showed strength all the way through, and I think that was the main reason for folding.
I managed to get back into the tourney, and eventually went out in about 60th spot, but it was a real slog, maybe if I had made the call the impetus would have carried me onto a more successful event.