First post, so go easy on me

I'm still finding my feet at No Limit, but here was a big one where I rivered the nuts. How was my play up to that point though?

MP and Button both seemed to be loose players and poor overall, and I hoped to either steal the pot preflop, or at least narrow it down to just a single player.

Postflop the trickiest bit seems to be the turn. I guess I should discount the Ad and 9d, but should I also reckon on the amount I'll be able to extract off him if I hit my straight? Should I even check here, or just fire another barrel. He's called a pretty sizeable bet already. Comments?

Party Poker No-Limit Hold'em, $ BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com

BB ($106.03)
UTG ($67.06)
MP ($22)
Button ($92.05)
Hero ($114.35)

Preflop: Hero is SB with Kd, Qs. MP posts a blind of $1. Hero posts a blind of $0.50.
1 fold, MP (poster) checks, Button calls $1, Hero (poster) raises to $5.5, 1 fold, MP calls $5, Button calls $5.

Flop: ($19) Td, 8s, Jd (3 players)
Hero bets $12, MP calls $16 (All-In), Button calls $16, Hero calls $4.

Turn: ($67) 3h (3 players, 1 all-in)
Hero checks, Button bets $20.73, Hero calls $20.73.

River: ($108.46) As (3 players, 1 all-in)
Hero bets $20, Button calls $49.32 (All-In), Hero calls $29.32.

Final Pot: $207.10