A pair of set hands

[EnderIII]

Any way to extract more chips? Smaller river bet? Or is it just that a straightening/flushing card on the river kills my action?

***** Hand History for Game 2556603645 *****
NL Texas Hold'em Trny:14948110 Level:7 Blinds (100/200) - Thursday, August 18, 16:25:58 EDT 2005
Table Multi-Table R+A(429868) Table #31 (Real Money)
Seat 1 is the button
Total number of players : 10
Seat 1: DaHolms ( $1965 )
Seat 2: EnderIII ( $20325 )
Seat 4: DAVE11508 ( $13650 )
Seat 5: scarce111 ( $6513 )
Seat 7: WILEY2COYOTE ( $3050 )
Seat 8: icecubing ( $11060 )
Seat 9: BroncoUSMA99 ( $10640 )
Seat 10: fsupharm77 ( $5400 )
Seat 3: travel_52 ( $18952 )
Seat 6: JOEG1973 ( $5730 )
Trny:14948110 Level:7
Blinds (100/200)
** Dealing down cards **
Dealt to EnderIII [ 3c 3d ]
DAVE11508 raises [400].
scarce111 folds.
JOEG1973 folds.
WILEY2COYOTE folds.
icecubing folds.
BroncoUSMA99 folds.
fsupharm77 folds.
DaHolms folds.
EnderIII calls [300].
travel_52 folds.
** Dealing Flop ** [ Ah, 2d, 3s ]
EnderIII bets [500].
DAVE11508 calls [500].
** Dealing Turn ** [ Qh ]
EnderIII bets [1500].
DAVE11508 calls [1500].
** Dealing River ** [ Kh ]
EnderIII bets [3000].
DAVE11508 folds.
EnderIII does not show cards.
EnderIII wins 8000 chips
Game #2556610035 starts.

Strange set hand

Rationally I meant to bet the flop, but a compulsion to slowplay made me split second check. After that how do you play the turn and river?

Game No : 2556321672
***** Hand History for Game 2556321672 *****
NL Texas Hold'em Trny:14948110 Level:3 Blinds (15/30) - Thursday, August 18, 15:16:17 EDT 2005
Table Multi-Table R+A(429868) Table #56 (Real Money)
Seat 2 is the button
Total number of players : 10
Seat 1: King_Jack ( $3890 )
Seat 2: GENNISTEDDER ( $3715 )
Seat 3: Decepticons5 ( $1410 )
Seat 4: EnderIII ( $4640 )
Seat 5: kezza78 ( $3045 )
Seat 6: kevin666 ( $860 )
Seat 7: mazarboy ( $3025 )
Seat 9: tonyde ( $865 )
Seat 10: zxkitkat ( $5290 )
Seat 8: edenrock ( $1531 )
Trny:14948110 Level:3
Blinds (15/30)
** Dealing down cards **
Dealt to EnderIII [ 3d 3h ]
kezza78 calls [30].
kevin666 folds.
mazarboy raises [60].
edenrock folds.
tonyde calls [60].
zxkitkat calls [60].
King_Jack folds.
GENNISTEDDER calls [60].
Decepticons5 folds.
EnderIII calls [30].
kezza78 calls [30].
** Dealing Flop ** [ Jc, 3s, Jh ]
EnderIII checks.
kezza78 checks.
mazarboy checks.
tonyde folds.
zxkitkat checks.
GENNISTEDDER checks.
** Dealing Turn ** [ 4d ]
EnderIII bets [250].
kezza78 folds.
mazarboy calls [250].
zxkitkat folds.
GENNISTEDDER calls [250].
** Dealing River ** [ 4h ]