$11: Flopped set early game

How is this set play?

PartyPoker, Big Blind is t15 (10 handed) Converter on pregopoker.com

UTG (t735)
UTG+1 (t245)
MP1 (t770)
MP2 (t795)
Hero (t770)
CO+1 (t785)
CO (t1150)
Button (t710)
SB (t1095)
BB (t945)

Preflop: Hero is in MP3 with 7[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/heart.gif[/img]
<font color="gray">UTG folds</font>, <font color="gray">UTG+1 folds</font>, <font color="gray">MP1 folds</font>, <font color="gray">MP2 folds</font>, Hero calls t15, <font color="gray">CO+1 folds</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, SB calls t5, BB checks

Flop: (t45) 3[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/club.gif[/img] (3 players)
SB checks, BB checks, Hero checks

Turn: (t45) 3[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/heart.gif[/img] (3 players)
<font color="red">SB bets t15</font>, <font color="gray">BB folds</font>, <font color="red">Hero raises t65</font>, SB calls t50

River: (t175) 3[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] (2 players)
SB checks, <font color="red">Hero bets t175</font>, SB calls t175