Stars 2/4 How's my line?

[B1ight]

The line seemed pretty standard, but i'm unsure about how I handled the end... my thinking was nothing I beat is going to call me in this situation... I felt if I checked and he bet, he probably had me beat. Kind of scarry board. I really just wanted to get it to showdown with my A9o. Kind of new to Limit, Started playing NL, but recently made the switch after 4 years of No Limit, getting kind of bored.

PokerStars 2/4 Hold'em (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is MP with A[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, Button calls, SB calls, BB calls.

Flop: (8 SB) 9[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets</font>, Button calls, SB folds, BB folds.

Turn: (5 BB) 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">Button raises</font>, <font color="#CC3333">Hero 3-bets</font>, Button calls.

River: (11 BB) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, Hero calls.

Final Pot: 13 BB