one dollar tournament on pokerstars
blinds are 1500/3000
i have a little over 60K in chips, BB is chip leaded with a little over 190K
7c7d limp in, BB raises to 6K, two calls in front of me, i call
flop comes 9s Ts 6d
check then bet of 3K in front of me, i call, BB raises to 6K
fold, call then i call
turn is 8d
i go all in for my remaining 50K, BB calls, other player folds
river is 3h,
BB has Js,Qs
is this the right play on my part?

few other things i forgot to mention
i've only been playing poker seriously for a few months now and this was the first time i had mad it to the money in a tournament of substantial size. at this point in the tournament i was happy with the way i had played and was ready to take $5.49 for my $1 buy in
just wondering what you guys thought of the play