raising with draws - how much FE needed?

[Galwegian]

BTW Jay, you can you these formula to help evaluate semibluff lines even when your semibluff is not an all in raise. If you have position on your opponent and you are sure that he will check the to you on the turn if he calls, then these formulae still provide a lower bound for the fold equity that you require. You just have to replace S (stack size) with the size of your raise. This is just a lower bound as it doesn't take into account any extra money that you might make when you make your draw.