Eurobet 100/200 river value bet?

[ggbman]

I am not very familiar with villian, he is ok, very aggressive, typical 100/200 player IMO.

Party Poker 100/200 Hold'em (4 handed) converter

Preflop: Hero is BB with A[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">SB raises</font>, Hero calls.

Flop: (4 SB) 9[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>, Hero calls.

Turn: (3 BB) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero raises</font>, SB calls.

River: (7 BB) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, SB calls.

Final Pot: 9 BB