$6 FO Party - Flopped top two

[Markuzi]

Situation: Party Poker, $6 Freezeout, ~600 entrants, 80 paid. 75 left.

UTG had been on my table for the entire tourney. Everything about her play seemed very solid. Stats I have on her over about 120 hands 22/15/3.5.

Party Poker
No Limit Holdem Tournament
Blinds: t800/t1600 (Ante: t50)
9 players
Converter

Stack sizes:
UTG: t56000
UTG+1: t13780
MP1: t34601
MP2: t13665
MP3: t20870
CO: t55670
Button: t24375
Hero: t56940
BB: t25725

Pre-flop: (9 players) Hero is SB with A[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/spade.gif[/img]
UTG calls t1600, 3 folds, MP3 calls t1600, 2 folds, Hero calls t800, BB checks.

Flop: T[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/spade.gif[/img] (t6400, 4 players)
<font color="#cc0000">Hero bets t4200</font>, BB folds, <font color="#cc0000">UTG raises to t8400</font>, MP3 folds, <font color="#cc0000">Hero raises to t18600</font>, <font color="#cc0000">UTG raises all-in t45950</font>, Hero ???

What is my action here? What do you put UTG on?