Top pair may be in trouble

[Perseus]

Just curious to what you guys think about this flop decision.

This was the first hand I played at the table and I had no previous reads against the other two opponents. Obviously this hand is ten times easier to play with any kind of read...

Party Poker 10/20 Hold'em (9 max, 8 handed) converter

Preflop: Hero is BB with J[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, <font color="#666666">3 folds</font>, <font color="#CC3333">Button raises</font>, SB calls, Hero calls, UTG+1 calls.

Flop: (8 SB) 2[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero checks, <font color="#CC3333">UTG+1 bets</font>, <font color="#CC3333">Button raises</font>, SB folds, Hero ...

At this point I am thinking three bet or fold, but the next two streets are really going to suck out of position if I get played back at.

Generally I am three betting this and laying it down to a raise on the turn, but I think I might be giving up too much here with top pair in a generally big pot.

Any thoughts appriciated...