Rivered an ace with NFD 200x deep at 5/10

[Requin]

No history, I've been at the table only a few hands. Made my stack with trips against a fish's terrible bluff. I think this guy is one-tabling, I haven't seen him before. Also I got some comments on my turn play when I posted this on CR, your guys thoughts? I was hoping at the time that unknowns would wimp out and check down missed draws on the river.

Party Poker
No Limit Holdem Ring game
Blinds: $5/$10
6 players
Converter

Stack sizes:
UTG: $985
UTG+1: $1197
CO: $964
Hero: $2264
SB: $883
BB: $2735.72

Pre-flop: (6 players) Hero is Button with 5[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img]
3 folds, <font color="#cc0000">Hero raises to $35</font>, SB folds, BB calls.

Flop: 7[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/club.gif[/img] ($75, 2 players)
BB checks, <font color="#cc0000">Hero bets $55</font>, <font color="#cc0000">BB raises to $200</font>, Hero calls.

Turn: 4[img]/images/graemlins/diamond.gif[/img] ($475, 2 players)
<font color="#cc0000">BB bets $360</font>, Hero calls.

River: A[img]/images/graemlins/spade.gif[/img] ($1195, 2 players)
BB checks, Hero?