Have you tried BitShares?
It is a decentralized exchange. @lukestrokes has talked about it.

I believe that @blocktrades is a front end to that system.

You just have to get used to trading virtual, virtual currency.
Which is probably a lot more accurate than what you think you are doing over at bittrex. As in, if you do a trade on bittrex for some bitcoin, you think you have some bitcoin, but what you really have is a claim on bitcoin. Or, a virtual crypto-currency.