100NL - Flop set 3-way, turn play

[toohigh]

SB is 25/14/5 over large sample, UTG is 49/15/1.5 over 180 hands. They both probably view me as slightly LAGish. SB has cold called a couple of my button raises already, I haven't noticed UTG open limp in EP yet.

My main question is on the turn action, but comments on all streets appreciated.

Full Tilt Poker
No Limit Hold'em Cash Game
$0.50/$1 Blinds
6 Players
Lego Poker Hand Converter

<font color="black">Stack Sizes</font>
<font color="black">SB: $66.40</font>
BB: $100
<font color="black">UTG: $198.30</font>
UTG+1: $71.55
CO: $116.25
<font color="black">Hero (Button): $123.80</font>

<font color="black">Preflop:</font> 3 3[img]/images/graemlins/heart.gif[/img] ($1.50, 6 Players)
UTG calls $1, 2 folds, <font color="red">Hero raises to $4.50</font>, SB calls $4, BB folds, UTG calls $3.50

<font color="black">Flop:</font> A 3 4 ($14.50, 3 Players)
SB checks, UTG checks, <font color="red">Hero bets $12</font>, SB calls $12, UTG calls $12

<font color="black">Turn:</font> A 3 4 7[img]/images/graemlins/spade.gif[/img] ($50.50, 3 Players)
SB checks, UTG checks, Hero?

[pokeriseasy]

Bet 40 and call a shove from UTG

[ikestoys]

bet 40-50... i'm a little worried that 56 just got there...

[toohigh]

What kind of range are we giving both players? Are we betting for value (get Ax to call), or to protect our hand (against straight/flush draw)?

I feel like the majority of their ranges is Ax, so I should be betting for value, despite the dangerous board. $40 may be a bit too much and scare them away.

[toohigh]

[ QUOTE ]
bet 40-50... i'm a little worried that 56 just got there...

[/ QUOTE ]

SB may have it, simply b/c I feel like he's playing back at me somewhat, but he's not that loose so I'm not so sure he'd play 65s from the SB, unless of course he was sure UTG would call along with him. I really doubt UTG has 65 here, I'm pretty sure he'd fold that to my raise most of the time (low cold-call pre %).