Forex Historical Data

I want historical tick level data for a few of the main currency pairs EJ,GU,GJ,EU,GC going back 10 years to backtest my systems.

I need to be able to import the data into metatrader.

Can anyone vouch for some good spot forex historical data providers?

Ive read elsewhere that some data providers can be quite inacurrate so if anyone here has tried 1 or a few already I would like to hear your opinions.

 

see here good data
http://www.forextester.com/data/datasources.html

 

Thanks for the link. How do you know this is good data? have you tested it against other sources?

 

Come on guys there must be a few of you out there that can recommend some accurate historical data providers for currency pairs.