Is there a pure crypto currency exchange?

[Deprived]

Something that doesn't involve dollars.

Something where you can buy/sell bitcoins/litecoins/other.

I would imagine that this would be bureaucratically easier to set up than other exchanges since it isn't dealing with recognized money (it would be the equivalent of trading stuff in WoW).

There's MtGox - you can't move USD in or out of there.