Head Up Theory Question

[PokrLikeItsProse]

Lets add a few more questions.

Same problem, except you and your opponent both have a finite amount of money, $100. Would that change your strategy?

In hold em, you hold A2 of spades. The board comes 345 of spades with two other meaningless cards. The only hand that can beat you is 67 of spades. Given unlimited money between you and your opponent and unlimited raising allowed, how many times should you reraise before you just call against an expert player in a limit game? How about in a pot limit game?