Nut flush draw faces aggression

[teampursuit]

First hand post here...I'm curious what you think. Preflop raise ok? Should I raise the turn here? Was 3-betting the flop ok?

I'd just sat down so no reads.

Full Tilt Poker
Limit Holdem Ring game
Limit: $0.25/$0.5
9 players
Converter

Pre-flop: (9 players) hero is MP1 with A[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/heart.gif[/img]
UTG calls, UTG+1 folds, <font color="#cc0000">hero raises</font>, 5 folds, BB calls, UTG calls.

Flop: 9[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/heart.gif[/img] (6.4SB, 3 players)
BB checks, UTG checks, <font color="#cc0000">hero bets</font>, <font color="#cc0000">BB raises</font>, UTG folds, <font color="#cc0000">hero 3-bets</font>, <font color="#cc0000">BB caps</font>, hero calls.

Turn: 6[img]/images/graemlins/club.gif[/img] (7.2BB, 2 players)
<font color="#cc0000">BB bets</font>, hero calls.

River: T[img]/images/graemlins/spade.gif[/img] (9.2BB, 2 players)
BB checks, hero checks.

Results:
Final pot: 9.2BB