Flopping a boat on a raggy board

[Poseidon65]

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.25/$0.50
5 players
Converter

Pre-flop: (5 players) Hero is BB with T[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/heart.gif[/img]
3 folds, SB calls, Hero checks.

Flop: 5[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/spade.gif[/img] ($1, 2 players)
SB checks, Hero checks.

Turn: A[img]/images/graemlins/club.gif[/img] ($1, 2 players)
<font color="#cc0000">SB bets $0.5</font>, Hero calls.

River: 4[img]/images/graemlins/heart.gif[/img] ($2, 2 players)
<font color="#cc0000">SB bets $4.5</font>, <font color="#cc0000">Hero raises all-in $51.25</font>.


Thoughts on how I played this hand? I find that in situations like this, if I were playing at higher limits, like say $100NL or $200NL, I could bet out and get played back at. At $50NL, a bet usually seems to take down pots like this immediately, which is not what I want?

Do you bet the flop here? Raise the turn?