Jeff
The only place I've found that has free intraday forex is
here. The site is in Russian, so it's a bit hard to find your way around, but it has minute data back to 2001. There are other sites, but their data has lots of errors and is really bad for backtesting.
The major problem with this site is that you have to download every day individually (all four years worth!). It's a labour of love to do, I can tell you...
Carson