weird set hand, what is the correct river play?

[underminedsk]

No reads on this guy, I just had sat down at the table a few hands ago.

***** Hand History for Game 4572123434 *****
$200 NL Texas Hold'em - Thursday, June 22, 19:08:37 ET 2006
Table Table 109584 (No DP) (Real Money)
Seat 6 is the button
Total number of players : 6
Seat 4: sialozemia ( $152.06 )
Seat 6: fghtffyrdmns ( $197 )
Seat 2: L337PoKaGoD ( $258.15 )
Seat 5: Pasterbator_ ( $197 )
Seat 3: Kut1Less ( $200 )
Seat 1: ibluff4funnn ( $198 )
ibluff4funnn posts small blind [$1].
L337PoKaGoD posts big blind [$2].
** Dealing down cards **
Dealt to L337PoKaGoD [ 7c 7d ]
Kut1Less folds.
sialozemia calls [$2].
Pasterbator_ folds.
fghtffyrdmns folds.
ibluff4funnn calls [$1].
L337PoKaGoD checks.
** Dealing Flop ** [ 2h, 3c, 7h ]
ibluff4funnn checks.
L337PoKaGoD bets [$3].
sialozemia calls [$3].
ibluff4funnn folds.
** Dealing Turn ** [ Ts ]
L337PoKaGoD bets [$6].
sialozemia calls [$6].
** Dealing River ** [ 8d ]
L337PoKaGoD bets [$12].
sialozemia raises [$34.57].
???

Up until he raises the river I have him on a flush draw.

the options are:
1. play it ultra safe and just call his raise, in case he has ran some weird straight or rivered a higher set.

2. make a small raise back at him and maybe fold if he reraises all in.

3. push all in and extract maximum value from a badly played lower set or rivered two pair, but lose maximum value from the higher set or straight.

What is the right move?

[aislephive]

Bet more near the pot on every street, this is a limped pot after all, it needs some fattening up. I would probably reraise here I think, 96/J9 of hearts is possible, but I take that chance and reraise to $100 here and call a push.