So would you just be kind of left in hell with nothing until your negative karma is used up?-eg.wandering around with nothing there
There are around 30 different hell realms, each with their own unique ways of dealing with negative karma. I wouldn't call it wandering around, because there would be nothing to wander, and nowhere to wander.
idav said:
In buddhism isn't the material world pretty much the hell needing to be escaped? Escaping Samsara to reach Nirvana?
It depends on how you look at it. In one sense, yes, you are correct. Samsara, the realm of birth, death, and rebirth, is where one is trapped until one reaches enlightenment, nirvana. But, the Zen masters taught that, ultimately, there is no difference between nirvana and samsara. Understand, that the Buddha, and countless others, reached nirvana while still living in samsara. So it's more a state of mind, nirvana, regardless of where one is or what state one is in.