Quote from GTC:
With QT (QuoteTracker), you can get <1min. chart with multiple data feed options. QT has free registration for Ameritrade since it was bought by Ameritrade. You can also get TotalView.
Exactly.
And, if you are concerned about data-feed "latency" issues with Ameritrade's "streamer" into QuoteTracker, simply find another data-feed provider. For example, you can get DTN's "IQFeed" piped into QuoteTracker for <$100 per month, and still clear the trades thru your TD Ameritrade account.
The charting capability of QuoteTracker is pretty damn impressive, and I believe that they get a bit of a discount from "IQFeed" as well.
Just an idea.