Early "all-in" decision

[bakersh]

Less than 10 hands into a NL tournament. Blinds are 10-20, start with 1500 in chips. Player A has won a couple pots, mostly committing all in after the flop and taking it down so he's up to about 2,000 in chips (give or take... basically, has me covered). I get A [img]/forums/images/icons/heart.gif[/img] 10 [img]/forums/images/icons/heart.gif[/img] a couple from the blinds. Fold to me, I raise to 200 (too little, too much? not a veteran of NL, mostly play limit). Player A calls, everyone else folds. Flop comes J [img]/forums/images/icons/heart.gif[/img] 10 [img]/forums/images/icons/diamond.gif[/img] 2 [img]/forums/images/icons/heart.gif[/img] . I bet the pot, A goes all in. Question 1: should I have bet more, less, not at all? Question 2: what do I do now?
I called and he turns over KQo and catches an Ace on the river, no more hearts. I'm out.

I assume in a ring NL game that my play would be okay (again, don't know as I don't play that much NL... actually, only a couple times), but in a tournament situation should I have given up my hand when faced with going all in? I honestly didn't put him on J 10 (but in hind sight, there's no reason for me to think he didn't have that), although if I did, I would think I still would have a decision to make.
Comments?

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