real-time data feed?

[Mike Eggleston <mikee@xxxxxxxxxxxxxx>]

I'm considering writing my own charting/analysis system. For such
a system I need a real-time, tick based data feed. I could write a dll
for TS6 that would forward each tick to my app, but I'd prefer to get
the data directly from a provider/source instead of through a
secondary app.

Is there a provider/source of real-time tick data. Might that provider
also have historical data (hopefully by tick, but at least by minute)
that I can pull to test my system?

Mike