Two tricky 100nl hands

[allstarrt]

The first hand involves me with a player who just called me a donk for making a bluff earlier in the session. We kind of verbally jarred for alittle bit but I think he thinks of me as overly aggressive. His stats are kind of tight but defiantly aggressive. I am not sure about the overbet push on the river in particular. Does he call with anything there? I think taking the valuetown route is better. I would like suggestions on all streets.

Full Tilt Poker - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $52.00
BB: $254.65
UTG: $105.75
Hero (MP): $283.65
CO: $35.80
BTN: $77.50

Preflop: Hero is dealt J[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/heart.gif[/img] (6 Players)
UTG folds, <font color="red">Hero raises to $3.50</font>, 3 folds, <font color="red">BB raises to $14.00</font>, Hero calls $10.50

Flop: ($28.50) 8[img]/images/graemlins/spade.gif[/img] J[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">BB bets $25.00</font>, <font color="red">Hero raises to $75.00</font>, BB calls $50.00

Turn: ($178.50) J[img]/images/graemlins/spade.gif[/img] (2 Players)
BB checks, Hero checks

River: ($178.50) 8[img]/images/graemlins/heart.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets all-in for $194.65</font>, BB folds
Uncalled bet of $194.65 returned to Hero

Pot Size: $178.50 ($3 Rake)

The second hand involves a much more solid player whom seems to be very selective aggressive. Does not tangle to much with out the goods. My thoughts is just call down but after thinking more and more about it i think a flop raise and fold to anymore aggression would be best. What are your thoughts?

Full Tilt Poker - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $37.20
BB: $77.30
UTG: $163.15
MP: $104.25
Hero (CO): $344.65
BTN: $74.10

Preflop: Hero is dealt A[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/heart.gif[/img] (6 Players)
UTG folds, <font color="red">MP raises to $3.50</font>, Hero calls $3.50, BTN folds, SB calls $3.00, BB calls $2.50

Flop: ($14) T[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] (4 Players)
SB checks, BB checks, <font color="red">MP bets $8.00</font>, Hero calls $8.00, 2 folds

Turn: ($30) 4[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">MP bets $20.00</font>, Hero calls $20.00

River: ($70) 8[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">MP bets $40.00</font>, Hero calls $40.00

Pot Size: $150.00 ($3 Rake)