how much do i bet with the best hand?

[unlucky513]

villain is a lag... i've watched him bluff away half his stack before this hand. i put him on a weak ace given his preflop raise...

how much do i bet when the river ace comes? i find myself in this situation a lot, often betting too much and rarely getting callers.

what would you do?

Party Poker No-Limit Hold'em, $2 BB (10 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Button <font color="#A500AF">(Villain)</font> ($261.12)
Hero ($144.95)
BB ($37)
UTG ($100)
UTG+1 ($63)
UTG+2 ($354.75)
MP1 ($164)
MP2 ($264.3)
MP3 ($99)
CO ($97)

Preflop: Hero is SB with 8/images/graemlins/club.gif, 8/images/graemlins/diamond.gif.
UTG folds, UTG+1 folds, UTG+2 folds, MP1 calls $2, MP2 folds, MP3 folds, CO folds, <font color="#CC3333">Button <font color="#A500AF">(Villain)</font> raises to $5</font>, Hero calls $4, BB folds, MP1 calls $3.

Flop: ($17) 9/images/graemlins/club.gif, A/images/graemlins/diamond.gif, 8/images/graemlins/spade.gif <font color="#0000FF">(3 players)</font>
Hero checks, MP1 checks, <font color="#CC3333">Villain bets $10</font>, Hero calls $10, MP1 folds.

Turn: ($37) T/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Villain bets $20</font>, <font color="#CC3333">Hero raises to $40</font>, Villain calls $20.

River: ($117) A/images/graemlins/spade.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $25</font>, Villain calls $25.

Final Pot: $167

thanks for the help!

[tbach24]

That ace DEFINETLY helps you. Since he was willing to call your min-raise on the turn, I think you could get away with 40.

[Burno]

Push. It's less than a pot size bet anyway, and if he is bad and has an ace he's not getting away from it very often.