Two interesting hands at the Commerce

[LAgambol]

5/10 NL at the Commerce
Villain had been losing big time but had been making a comeback starting with me doubling him up earlier in the session.
First hand
Hero 2000
Villain 1800
I had been playing LAG but was winning most hands at showndown. Villain was loose call station who was capable of making a move.
Hero: A [img]/images/graemlins/spade.gif[/img] 3 [img]/images/graemlins/spade.gif[/img]
Call in MP, Villain on button makes it 40, BB calls, limpers calls, Hero calls
Flop: J [img]/images/graemlins/spade.gif[/img]7 [img]/images/graemlins/diamond.gif[/img]5 [img]/images/graemlins/spade.gif[/img]
check, check, hero checks, villain makes it 100, BB goes all in for 250, Hero...whats the best move here?
Hero calls, villain makes it 500 more, hero...
Turn: non-spade
Hero?

About thirty minutes later same villain who started running super hot get in this hand
Hero 1400 Villain 3500
Hero: A [img]/images/graemlins/spade.gif[/img]Q [img]/images/graemlins/spade.gif[/img]
one limper, Hero in MP makes it 50, Villain on button calls, BB calls, limper folds
Flop: K [img]/images/graemlins/club.gif[/img]8 [img]/images/graemlins/diamond.gif[/img]2 [img]/images/graemlins/heart.gif[/img]
BB checks, Hero checks, Villain checks
Turn: 5 [img]/images/graemlins/spade.gif[/img]
BB checks, Hero bets 100, Villain calls
River: A [img]/images/graemlins/diamond.gif[/img]
Hero bets 150, Villain makes it 400, Hero...