Flopped set w/77, better way to play this?

[LowDown22]

All players mostly loose passive at this table. I think only the flop and river may be debateable. Should I raise this flop to try and chase out a single A or K [img]/images/graemlins/diamond.gif[/img] here or go for overcalls? I felt that anyone facing two cold without a 4flush or at least top pair would fold here. Also on the river, is it better to go for the overcalls?

Paradise Poker 1/2 Hold'em (9 handed) converter

Preflop: Hero is MP1 with 7[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/spade.gif[/img]. CO posts a blind of $1.
<font color="#666666">1 fold</font>, UTG+1 calls, Hero calls, <font color="#666666">1 fold</font>, <font color="#CC3333">MP3 raises</font>, <font color="#666666">2 folds</font>, SB calls, <font color="#666666">1 fold</font>, UTG+1 calls, Hero calls.

Flop: (10 SB) 5[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">UTG+1 bets</font>, Hero calls, MP3 calls, SB calls.

Turn: (7 BB) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, UTG+1 checks, <font color="#CC3333">Hero bets</font>, MP3 calls, SB calls, UTG+1 calls.

River: (11 BB) Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">UTG+1 bets</font>, Hero calls, MP3 folds, SB calls.

Final Pot: 14 BB