Short stacks how does they change the way you play?

[zaphod]

Say its a NL100, 6 max. You have doubled up, and have a stack of 200BB so does another player. The rest of the table consists of short stacks(20-30 BB). Assume the other bigstack will frequently stack you with his TPTK hands.
How does this change the way you play? How often do you limp? How does your position to the other bigstack change matters? I assume that it is very bad if you have the other bigstack right behind you, so you need some compensation(=he plays very bad) to continue playing?

Other comments?