Is this river play too passive?

Who raises here and who just calls? I usually would raise, but I felt like the only hand that is going to call a river raise is a FullHouse (?).. Also i think I bet too small on the turn/river, what's a good bet size here? I think my bets tend to be on the small size to try to keep them in the hand, but maybe I should just be going for better sized bets that they will still probably call. How would you get max. value?

PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (9 handed) internettexasholdem.com (http://www.internettexasholdem.com)

Button (t3635)
SB (t1850)
Hero (t8550)
UTG (t1515)
UTG+1 (t2175)
MP1 (t3615)
MP2 (t6125)
MP3 (t3090)
CO (t2385)

Preflop: Hero is BB with J/images/graemlins/heart.gif, Q/images/graemlins/heart.gif.
<font color="#666666">6 folds</font>, Button calls t100, SB completes, Hero checks.

Flop: (t300) K/images/graemlins/spade.gif, T/images/graemlins/heart.gif, T/images/graemlins/club.gif <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, Button checks.

Turn: (t300) A/images/graemlins/spade.gif <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets t130</font>, Button calls t130, SB folds.

River: (t560) 7/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t200</font>, <font color="#CC3333">Button raises to t400</font>, Hero calls t200.

Final Pot: t1360

[Roman]

nice underbet on the turn and river
bet 200 turn 400 riv, and call the raise if hes good.

I thought I bet way too little on both streets, thanks.

Stack like that before the flop theres no way I'm not raising the river to at least 1200. If he insists on pushing more chips in the pot then you have a tough decision. Unless hes a passive uberdonk hes not limping any hands that beat you, unless he called to the river with 77.

I probably raise before the flop too to try and pick up blinds and represent a bigger hand. You already know your post flop bets need to be a little bigger but I'll reiterate, bet at least 180-200 on turn and 300-400 on river. I'd probably fire at the flop too but I've been playin super LAG recently.