Party $215 Friday MTT Report

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Hey all, I finished 21st in tonight's $215 MTT on Party and I wrote a report on it here:

$215 Tourney Report

I have a couple hands from this tournament I would like opinions on:

Party Poker No-Limit Hold'em Tourney, Big Blind is t1000 (9 handed) converter

MP1 (t11180)
MP2 (t9600)
MP3 (t3933)
CO (t18346)
Button (t6330)
Hero (t18129)
BB (t11240)
UTG (t8029)
UTG+1 (t10023)

Preflop: Hero is SB with 4[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/heart.gif[/img].
<font color="#666666">7 folds</font>, <font color="#CC3333">Hero raises to t2600</font>, BB calls t1600.

Flop: (t5200) K[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t3000</font>, <font color="#CC3333">BB raises to t8500</font>, Hero ???

Based on pure pot-odds, and considering that there is some small chance he's bluffing and hitting a 5 or 4 may win me the pot - am I committed here?

Next:

Party Poker No-Limit Hold'em Tourney, Big Blind is t1500 (7 handed) converter

MP1 (t79507)
MP2 (t16320)
CO (t13440)
Button (t27213)
SB (t18670)
Hero (t14029)
UTG (t23745)

Preflop: Hero is BB with T[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/heart.gif[/img].
UTG calls t1500, <font color="#666666">5 folds</font>, Hero checks.

Flop: (t3750) 6[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets t1500</font>, <font color="#CC3333">Hero raises to t3000</font>

Is this min-raise here ever going to work? The Villian was a pretty tight, decent player who wasn't getting out of line. Should I just let it go, or if I want the pot, just push instead?

I wanted to eat my cake and have it too by min-raising and winning the pot in the event he doesn't have an ace, while being able to fold if he does call or reraise, and still have a stack left.

Any comments would be appreciated.