11+Rebuy, Big Pot Hand

[Chief911]

Could I have gotten more out of this hand? I didnt want to price someone into a draw, but the one caller on the turn called INSTANTLY. Was my check wrong on the river?

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (9 handed)

MP1 (t6053)
Hero (t9953)
MP3 (t5937)
CO (t15315)
Button (t12212)
SB (t19370)
BB (t9690)
UTG (t9735)
UTG+1 (t6805)

Preflop: Hero is MP2 with 7[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/spade.gif[/img].
UTG folds, UTG+1 calls t200, MP1 calls t200, Hero calls t200, MP3 folds, <font color="CC3333">CO raises to t800</font>, Button folds, SB folds, BB calls t600, UTG+1 folds, MP1 calls t600, Hero calls t600.

Flop: (t3500) K[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/diamond.gif[/img] <font color="blue">(4 players)</font>
BB checks, MP1 checks, Hero checks, CO checks.

Turn: (t3500) A[img]/images/graemlins/spade.gif[/img] <font color="blue">(4 players)</font>
BB checks, MP1 checks, <font color="CC3333">Hero bets t4800</font>, CO calls t4800, BB folds, MP1 folds.

River: (t13100) Q[img]/images/graemlins/spade.gif[/img] <font color="blue">(2 players)</font>
Hero checks, CO checks.

Final Pot: t13100