Flush draws and pot equity

[AngelicPenguin]

I was re-reading SSH and looking for specific examples of flush draws and I had some questions that I thought maybe I could get some clarification on.

First, with strong drawing hands like AK [img]/images/graemlins/spade.gif[/img] with two [img]/images/graemlins/spade.gif[/img]'s on the flop, I understand fully why you would bet and raise. Miller talks about cleaning up outs, so that if you don't make your flush you could make a baby A or K fold that would beat you if you spike your pair. In addition, he talks about how if, for example, you are against 5 opponents, then your flush will come in 36% of the time, so you are also betting for value because your pot equity is larger than your share.

So, how about this example. I have 76 [img]/images/graemlins/club.gif[/img] from LP vs 6 opponents in an unraised pot (7 SB) The flop comes K [img]/images/graemlins/club.gif[/img] 9 [img]/images/graemlins/diamond.gif[/img] 3 [img]/images/graemlins/club.gif[/img].
Scenario #1: There is a bet from EP and it is called around to me. I assume that I should raise here because my pot equity should be somewhere around 30%+ and I'm contributing nowhere near that.
Scenario #2: It is checked around to my immediate right, who bets. I should simply call here, right, since with my draw I don't want to force out players by making them cold call and being up against a probable pair.
Scenario #3: A bet comes from first position, several calls, then a raise, with several more cold callers before me. Should I 3-bet since I think most of the time my pot equity is still good here? Or do I assume that I could be up against a bigger flush draw and call it down?

So, I guess my long winded question is, if I have an average flush draw (little flush cards), should I push the flop (3-bets, caps) as long as I don't force a lot of players out, or if I'm played back at, should I simply call, making the assumption that he may have a better flush draw and my pot equity maybe virtually nothing? Assuming no reads of course. I know there is also the idea of raising for a free card, but let's assume for these questions that the players are aggressive and that won't work. I'm trying to determine whether or not I'm getting good value bets in the different scenarios. I'd like to play these pretty good draws optimally and not keep thinking "should I pump this flop, or give him credit for the flush draw as well."

Obviously, a lot of it is situational, but I was hoping to solicit some opinions.