Made a simple stop-loss order system (monitors price and executes a market order at the trigger price)
http://stoploss.pw/Only has Mt.Gox support but Bitstamp support is coming soon

That is a great idea, none of the exchanges have this functionality which is a common feature of equity trading accounts.
Good luck
Hello, I find this very interesting. Are there any plans to implement dynamic stop-loss orders? That is, if set to "activate if price drops 5%", in case the price rises, a dynamic order will set the new base for the 5% drop to the new higher price. For example, if the BTC price was $100, and my dynamic stop-loss is at a drop of 5%, if the price goes down to $95, it will activate. However, if the price goes up to $110, I would like the "activation price" would be set to a drop of 5% from $110, that is $104.5