[SoGDsimple]

If your holding the nut straight on the turn I would definatley bet pot.
You want to guve the person with a flush draw bad odds. The guy with top set is going to give you action, if the board pair on the river I wouldnt commit to much more. Depending on the skill level of the people you are playign with.
Do not bet pot after flopping a straight, I say just call and see what comes, because you don't want to commit a ton of chips till you are a signifigant favorite.(Like one card to come) With the best hand possible.