Flopped Straight...take it down now or build pot?

[Popped Rod]

Local B&M Spread Limit Holdem. Blinds are 5/5/10 (button has to post $5). Max bet/re-raise is $200.00.

Table has just started a couple orbits ago. Evryone has been playing fairly passive with occasional bursts of aggression. We all have about the same stacks, $600.00.

I'm BB this hand with J[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/heart.gif[/img]

UTG calls, UTG+1 calls, MP calls, Button and blinds complete.

FLOP: K[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/heart.gif[/img] (Pot = $60, 6 players)

SB checks, Hero checks, UTG bets $35, UTG+1 calls $35, MP calls $35, Button calls $35, SB folds, Hero...???

Should I C/R the flop or smooth call to build the pot. I'm worried about a Jack hitting the turn/river (making broadway for an Ace) or KQ filling up.

TIA, Rod

[illuminati]

Max raise. Jx goes nowhere.