K6 suited

[jah0550]

Before I get started, I think that I played this hand all wrong. But my question is not necessarily about this hand, but rather a general one.
Last night on PP, $20 NL/6 handed. Blinds are t50. Hero (1250) is on the button with K [img]/images/graemlins/diamond.gif[/img]6 [img]/images/graemlins/diamond.gif[/img]. Everyone folds to Hero. Hero raises to 150. (It was a semi-steal attempt) The SB(900) calls and the BB(770) calls.
Flop
9 [img]/images/graemlins/heart.gif[/img]10 [img]/images/graemlins/diamond.gif[/img]J [img]/images/graemlins/spade.gif[/img]
SB checks, BB checks, Hero checks
Turn
Q [img]/images/graemlins/heart.gif[/img]
SB checks, BB checks, Hero bets 400. SB reraises all-in. BB folds. Hero calls.
Results:
SB had A [img]/images/graemlins/spade.gif[/img]K [img]/images/graemlins/spade.gif[/img] for an Ace high straight.
This is not a bad beat post, but rather should I have played this hand at all? If you have a hand like K6 suited on the button, should you try to take down the blinds? I run into this situation a lot of times and was just wondering when it is the right time to try and steal. The SB was LAG and the BB was weak-tight.