TrueStory, Tradebolt charges per order whihc is silly. The better bets are TradeBULLET and NinjaTrader.
I have found a company that has found some great ways to provide third party trade station execution outside of strategy runner and trade bullet with great fee structure and good data. the program is called vktrader. I was previously using Tradestation but The only trouble that i have found with the TS is the execution i.e. not being filled, am i filled, orders being doubled and trippled or not being placed at all. In short i am not having these problems anymore and i am also able to easily trade multiple accounts and multiple systems using single instances of TS and vktrader. This is not possible on strategyrunner. the whole thing is very easy to use. they also have a nice mechanism for trading limit orders.