Ameritrade - i've done that (no funds) for a long time but they are bound to close me for no activity or funds sometime soon
It's been a couple years! I hope your correct and I can continue to use it. QT doesn't work with it for me, think you've addressed that here somewhere. API changes?
Fidelity - yes their streaming is nice but the software is ....I'll be nice ... less then optimum.