2 barrel here?
 

$0.5/$1 Pot Limit Omaha Hi
6 players
Converted at weaktight.com

Stacks:
UTG (<font color="#0000cc">$101.85</font>)
Hero (<font color="#0000cc">$178.45</font>)
CO (<font color="#0000cc">$106.50</font>)
BTN (<font color="#0000cc">$17.45</font>)
SB (<font color="#0000cc">$107.00</font>)
BB (<font color="#0000cc">$103.20</font>)

Pre-flop: ($1.5, 6 players) Hero is UTG+1 6[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/club.gif[/img]
UTG calls $1, <font color="#cc0000">Hero raises to $4.5</font>, CO calls $4.5, <font color="#777777">1 fold</font>, SB calls $4, <font color="#777777">1 fold</font>, <font color="#777777">UTG folds</font>

Flop: T[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] ($15.5, 3 players)
SB checks, <font color="#cc0000">Hero bets $10</font>, CO calls $10, <font color="#777777">SB folds</font>

Turn: 3[img]/images/graemlins/club.gif[/img] ($35.5, 2 players)
<font color="#cc0000">Hero bets $24</font>,

37/4/3/26 villian

Re: 2 barrel here?
 

This is how I'd play it, though I'd bet more on both the flop and turn. His most likely hand after calling flop is a pair plus a straight draw.

Re: 2 barrel here?
 

I like it. Personally I like the bet sizes, higher would look like a bluff more often on such a dry board imo.