Set vs straight? Take advantage, or play weak?

[NorthernGuy]

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (9 handed) FTR converter on zerodivide.cx

BB (t6697)
UTG (t7650)
UTG+1 (t13365)
MP1 (t3162)
MP2 (t16748)
MP3 (t6250)
CO (t6150)
Button (t4830)
Hero (t5505)

Preflop: Hero is SB with 9[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">5 folds</font>, <font color="#CC3333">CO raises to t600</font>, <font color="#666666">1 fold</font>, Hero calls t500, <font color="#666666">1 fold</font>.

Flop: (t1400) 9[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, CO checks.

Turn: (t1400) T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets t400</font>, Hero ???

I'm trying to figure out where I can open up my game with more aggression. Does this seem like a reasonable spot to reraise him, representing the best straight? I still have outs to make the boat if he calls. I checked the flop looking to c/r, then the T had me worried. His open raise didn't seem like much more than a steal.

If he has the ignorant end of the straight, I'm thinking I could get him to fold with a reraise.