Trouble playing vs 46/8/1.2

[yellowbluebus]

I have difficulty playing hands vs this type of villains. Maybe it's because I haven't made a hand to value bet them to death. I just sat down and this happened:

------------------
HAND #1
------------------

Full Tilt Poker, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

MP: $48.55
CO: $48.45
BTN: $52.25
Hero (SB): $49.50
BB: $33.70
UTG: $65.70

Pre-Flop: K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img] dealt to Hero (SB)
UTG calls $0.50, 3 folds, <font color="red">Hero raises to $2.50</font>, BB folds, UTG calls $2

Flop: ($5.50) 7[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets $4.25</font>, UTG calls $4.25

Turn: ($14) 7[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets $9.25</font>, UTG calls $9.25

River: ($32.50) 3[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, <font color="red">UTG bets $15</font>, Hero folds

Results: $32.50 Pot ($1.60 Rake)
UTG mucked and WON $30.90 (+$14.90 NET)

I am not sure whether it's a spew betting the turn vs this loose player that doesn't like to fold.

Now to the hand in question. It's similar to hand #1 where 7 doesn't really change the board. Considering history I decided to preserve the bet and get there on the river. I didn't and I'm seriously considering betting this river. With our history in mind is this any good? Comments on both hands are appreciated. Thanks!


------------------
HAND #2
------------------

Full Tilt Poker, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

UTG: $43.05
MP: $47.70
CO: $57.30
Hero (BTN): $50
SB: $31.45
BB: $82.85

Pre-Flop: T[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/heart.gif[/img] dealt to Hero (BTN)
UTG calls $0.50, 2 folds, <font color="red">Hero raises to $2.50</font>, SB folds, BB calls $2, UTG folds

Flop: ($5.75) 3[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/club.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $4.25</font>, BB calls $4.25

Turn: ($14.25) 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
BB checks, Hero checks

River: ($14.25) Q[img]/images/graemlins/diamond.gif[/img] (2 Players)
BB checks, Hero ?