$3.40: value bet on the end?

[vowels]

No Limit Holdem Tournament
Blinds: t25/t50
8 players
Converter

Stack sizes:
UTG: t1535
UTG+1: t1455
MP1: t1435
MP2: t1395
CO: t1940
Button: t1590
SB: t2700
Hero: t2950

Pre-flop: (8 players) Hero is BB with A[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/club.gif[/img]
5 folds, Button calls t50 <font color="aaaaaa">(pot was t75)</font>, SB calls t25 <font color="aaaaaa">(pot was t125)</font>, <font color="#cc0000">Hero raises to t200</font>, Button folds, SB calls t150 <font color="aaaaaa">(pot was t300)</font>.

Flop: Q[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] (t450, 2 players)
SB checks, <font color="#cc0000">Hero bets t300</font>, SB calls t300 <font color="aaaaaa">(pot was t750)</font>.

Turn: 3[img]/images/graemlins/spade.gif[/img] (t1050, 2 players)
SB checks, <font color="#cc0000">Hero bets t500</font>, SB calls t500 <font color="aaaaaa">(pot was t1550)</font>.

River: K[img]/images/graemlins/club.gif[/img] (t2050, 2 players)
SB checks, Hero: ?

should i value bet this on the end, or just check for fear of being reraised? also, were my bet amounts correct on the flop and turn?