The following comes up quite a lot: you flop top set, but there is both a straight and a flush draw out there. You bet pot, and get one caller who has position on you. On the turn the straight hits. What's your play? Of course, it depends on stack sizes, opponent tendencies, etc. Do you agree with the following lines, which are more or less standard for me?

Assume that you have [Kc][4c][4s] on a [9d][6s] board, and that the hits the turn.

1) Against average opponent who likes to chase flushes, bet out again. Exception: after your bet your opponent can make a potsized raise which effectively puts one of you allin and which pot odds don't allow you to call.

2) If one bet on the turn is going to put you allin or close to that I will probably make it against most opponents.

3) If the money is deep relative to the pot size I will also bet out; by deep here I mean that if my opponent were to raise pot, I would still have a reasonable amount left on the river to bet. If my opponent is extremely tight/predictable, then I will not call his raise, because I don't think he will pay me off when the board pairs.

4) This is a new line I'm trying against aggressive/bluffy opponents: I check, and if they bet then I checkraise allin (or close to it). This you can't do against players who are likely to take the free card. Also works well against people who tend to flat call with middle or bottom set because they're afraid to raise the flop.
Caveat: the checkraise should get almost all of your stack (or his) in, because you can't play a huge pot OOP here if there is substantial money left for on the river.

Ideas?

I get aggro baby. I like the CR a lot but don't use it enough, a leak for me I feel, especially against good opponents. But yeah, in this situation I bet 100% of the time as long as my opponent can't make a full re-raise (or if the stacks are so deep there's still a decent amount to bet on the river if he does).

The exception is that I don't like to see a pot raise which puts me all in and which I cannot call based on pot odds.If stack sizes are such that there are exactly 2 bets left on the turn then I will either do the checkraise allin, or check/fold or check/call, depending on the opponent.