Fold JTo preflop. You are out of position with a drawing hand. This is not a good situation, since you cannot take too much heat with JTo when there is a lot of action.

Given the situation which you describe i would agree with betgo and push. You have a pair + a draw which is a strong holding. What is villain's range?
If he had a set I suppose that he wouldn't have raised immediately. QT, Q9 are fairly loose holdings in early position, altough he has 10k and the blinds are 300/600. The only reasonable holding which beats you is AQ. If he really has AQ you still have outs, so push.