Trips Facing Possible Flush/Straight

[rwdvc]

My villain clocks in at 63/17/2.1 over 177 hands. I'm thinking I played this too passively and should have reraised in the flop. But, now that we are at the river do we make the call and hope he doesn't show up with a flush/straight? For some reason it is these sorts of hands that I always butcher and am not really sure what do do with.

Poker Stars, $0.10/$0.25 NL Hold'em Cash Game, 5 Players
LeggoPoker.com - Hand History Converter

BTN: $13.15
SB: $7.45
BB: $37
Hero (UTG): $26.65
CO: $25.25

Pre-Flop: 7[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/heart.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to $0.80</font>, CO folds, BTN calls $0.80, SB calls $0.70, BB folds

Flop: ($2.65) 6[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/spade.gif[/img] (3 Players)
<font color="red">SB bets $1.25</font>, Hero calls $1.25, BTN folds

Turn: ($5.15) J[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB bets $1.25</font>, Hero calls $1.25

River: ($7.65) 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB bets $4.15 and is All-In</font>