In the current market, there are only two players who can help retail traders automate their startegy. One is Symphony and the other
http://www.slideshare.net/rahul_quantech/atlas-an-overview
Had a chance to look at both system, Presto is a known system which is based on Marketcetra platform and has been re branded by Symphony but is a good system
The guys at Quantech Ventures have built their own system and the only advantage compared to Symphony is that you can write your own strategy without showing it to anyone.
Call me old fashioned but I like to keep my trading strategy a lil secretive (The other day my wife asked me too about my strategy and I didnt like to share it with her too...
) so I am thinking of connecting them with my broker.