Quote from flat5:
... I think a very carefully thought out plan for risk control and fault tolerance is a huge part of the work in a set and forget system that can operate while one works his/her day job.
from what i understand we are not talking about real high frequency. so why not pay sum more commission and email/ftp/fix/whatever to a broker who executes "by hand"? and contract with him that he only accepts so many contracts and stops out once somethig strange happens and so forth.