KQo turn decision at 3/6 (6-max)

[Superfluous Man]

After making a nice tournament score, I've been trying to improve my NL cash game. It's not working so far, down a couple grand in rather limited playing time; mostly due to bad play, being tired when playing, and bad table selection. I'll probably drop to 2/4 before I donk it all away. Anyway, enough whining. I'll try to do this one from memory, as I'm not home at the moment.

I have K[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] in the BB and $680 behind.

It's folded around to the SB ($500 or so). My read on him is that he's pretty straightforward. He has a strange habit of minbetting the flop, but he's been betting bigger on the flop as of late. About 10 hands ago, he potted the flop, I called, and he proceeded to check/fold the blank turn.

Preflop: SB completes, Hero raises to $18, SB calls ($12).
Flop ($36): Q[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/club.gif[/img]
SB bets $20, Hero raises to $90, SB calls $70.
When he calls, I put him on either a flush draw or a queen.
Turn ($216): J[img]/images/graemlins/club.gif[/img]
SB bets $153, Hero ???

Bad card, as QJ's gotten there, as have the flush draws. But, I do have the redraw to the 2nd nut flush, and possibly 3 K outs. Oh, and also those ace outs. Suggestions?