¿Dónde encontrar datos para FX (Ticks)?

Dicen:

– I believe you can get from TrueFX http://www.truefx.com/
– look at: http://ratedata.gaincapital.com/
– You can find it on the dukascopy website
– You can open a demo account at www.fxpro.com and get data for any fx currency pair. You can download it easily for any time frame: Daily, weekly, hourly, etc.
– iqfeed.com

Yo los he descargado de Oanda.