Getting max value - what to bet with big hands

[fooz]

These are two hands where in each I'm wondering if I bet too much and lost a bunch of possible value because of it.

<u> HAND #1 </u>

Villain is 46/17/5 after 150 hands.

Is it standard to check behind on the Turn here?

Party Poker - NL200

Stack sizes:
UTG: $320.30
Hero: $334.27
Button: $212.70
SB: $228.35
BB: $226.45

Pre-flop: (5 players) Hero is CO with A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img]
<font color="#cc0000">UTG raises to $6</font>, <font color="#cc0000">Hero raises to $19</font>, 3 folds, UTG calls.

Flop: K[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/heart.gif[/img] ($41, 2 players)
UTG checks, <font color="#cc0000">Hero bets $36</font>, UTG calls.

Turn: 3[img]/images/graemlins/heart.gif[/img] ($113, 2 players)
UTG checks, <font color="#cc0000">Hero bets $70</font>, UTG folds.


<u> HAND # 2 </u>

UTG villain is 47/7/1.2 after 150 hands.

I realize I should've raised more on the flop here. And I was really thinking the Ace might call me with the River shove. He's so passive I'm reluctant to check ...but do I bet the pot?

Party Poker - NL200

Stack sizes:
UTG: $270.84
Button: $149.05
SB: $158.55
Hero: $254.70

Pre-flop: (4 players) Hero is BB with 8[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/club.gif[/img]
UTG calls, Button folds, SB calls, Hero checks.

Flop: 6[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] ($6, 3 players)
<font color="#cc0000">SB bets $4</font>, <font color="#cc0000">Hero raises to $12</font>, UTG calls, SB calls.

Turn: 2[img]/images/graemlins/diamond.gif[/img] ($42, 3 players)
SB checks, Hero checks, <font color="#cc0000">UTG bets $18</font>, SB folds, Hero calls.

River: 3[img]/images/graemlins/spade.gif[/img] ($78, 2 players)
<font color="#cc0000">Hero raises all-in $220.7</font>, UTG folds.