Preflop question - blind steal from the hijack.

[OrianasDaad]

I'm playing in a nine handed $2/$4 game, and it's folded to me in the hijack. I've got 9[img]/images/graemlins/diamond.gif[/img]8[img]/images/graemlins/diamond.gif[/img].

CO is TAG.
Button is a mild LAG. (45/8/1.3), but I've shown down good hands against him so far.
SB is meh, 5 for 5 on folding to steals from this position though.
BB is loosish over 79 hands - but folds frequently when they miss on the flop.

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I've been struggling with situations like this. My standard raising hands in this spot have usually included a couple of high cards, or a pocket pair. Maybe even hands as weak as K9o or A8o. These medium suited connectors make a tough pre-flop decision for me in a full game.

What's the general play?