Well, you're getting 3:1 and it's difficult to put them on hands that give you worse odds than those (if both have the flush and one has the straight flush draw then you're 4:1, but for everything else you're 3:1 or slightly better). It's marginal EV wise, but I'm pretty sure it's positive to call.

There are no indications that player B has a better hand than you, so I think calling A's bet is the right move. You have TPTK and a draw to the best flush. You want him to stick around with a if he's dumb enough to do so. I doubt you could get him to lay down anything that has you beat here by moving in -- you'll only fold hands that you want to stick around.

I would have raised all-in on top of player A's bet. As it is, it looks like SB flopped a medium flush and player A probably has KQ with . You have to call SB's reraise, still.

Wow you guys are good, you have it pretty much right on the button. Player A is playing KQ with the queen of spades. Player B is playing 9/4 spades. I was thinking about pushing all in, but I decided that the $100 was going to push player B out, a mistake. If I was willing to call all-in I should have at least made player B think about the chance that I had a bigger flush. As it was I have player A totally dominated like I thought.

Result. I call the all in after thinking about it for a minute, hoping one of them had a set or top 2 so that there were more spades in the deck to give me outs. I missed and lost the pot. The board did pair on the turn also, giving me a few more outs.

Man. Not playing poker has improved my hand reading ability apparently. Sucks. It's useless now.