Tricky river on PP 15/30 after spiking a set, (fixed conversion)

[StacysMom]

About 50 hands on villan. Appears to be a typicl TAG. Toughest decision is on river. I think the raise is a must, but the cap was a tough call. I decided he was holding AQ and went for it. Was a little scared of AA, KK or maybe JTs. Thoughts on any street would be appreciated also.

Party Poker 15/30 Hold'em (10 handed) converter

Preflop: Hero is MP3 with Q[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">UTG raises</font>, <font color="#666666">4 folds</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">4 folds</font>, UTG calls.

Flop: (7.66 SB) 9[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, <font color="#CC3333">Hero bets</font>, UTG calls.

Turn: (4.83 BB) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, Hero checks.

River: (4.83 BB) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">UTG 3-bets</font>, <font color="#CC3333">Hero caps</font>, UTG calls.

Final Pot: 12.83 BB