Line for suited ace in the SB

[Vern]

BB is loose and passive,
UTG is slightly loose preflop and aggressive post flop
UTG is relative new but looks passive

How is my line?

Party Poker 0.5/1 Hold'em (10 handed) converter

Preflop: Hero is SB with A[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/club.gif[/img].
UTG calls, UTG+1 calls, <font color="#666666">6 folds</font>, Hero completes, BB checks.

Flop: (4 SB) 4[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, BB calls, UTG calls, UTG+1 folds.

Turn: (3.50 BB) K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, BB folds, UTG calls.

River: (5.50 BB) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets</font>, Hero calls.

Final Pot: 7.50 BB