Steal Called - now what?

[Kurn, son of Mogh]

'Stars $30 + 3 2-table. 6 left, 75/150, I'm 2nd in chips with 5025.

I get 9 [img]/images/graemlins/club.gif[/img] 5 [img]/images/graemlins/club.gif[/img] in the CO.

Folded to me, I raise to 450, Button (9189) calls, blinds fold. (pot=1125)

Flop: 6 [img]/images/graemlins/spade.gif[/img] 9 [img]/images/graemlins/diamond.gif[/img] 8 [img]/images/graemlins/club.gif[/img]

I bet 750, button calls (2625)

Turn: 5 [img]/images/graemlins/heart.gif[/img]

OK, the only person who can bust me called my preflop raise and smooth-called about 9% of his stack on a coordinated board. I have turned 2-pair.

What's your read on the button? (my impression - since he's had a big stack, he has liked to see flops and try to outplay opponents later in the hand - successfully so far)

Who bets? How much? What do you do if raised?

My decisions, rationale, and results later.