[BlowFish]

Personally I'd stay away from the obvious charting packages. They really are not robust enough unless you are going to sit and watch which kinda defeats the object. The obvious place to run this stuff is at your brokers where they have (if they are any good) suitable redundant infrastructure. I have never used them but maybe check out strategy runner. They also have in house programmers to help customers with automation. Quite a few brokers offer to run SR strategies. Step one is writing a detailed enough spec that people can quote on it, you can have placeholders for key elements if you are worried about plagiarism.

I know a couple of people that have done it themselves but they have either been pretty hot Java or C guys or had access to pretty hot Java or C guys (friends or colleagues). It is possibly a greater undertaking than you might imagine. Long story short you aren't going to want ninja, ts, amibroker, ensign, or whatever running on some virtual machine in a data centre. Of course if you are going to run it on a PC in your office while you watch TV with one eye and make sure everything is OK with the other that's a far more trivial proposition.

Cheers.