Best backtesting software?

I've been wanting to backtest a few trading methods and unfortunately most of the charts I am using only give data back a few hundred periods. This is fine if you look at daily or weekly charts, but when looking at 15 min charts it only gives you a sample of a few weeks, if that much.

Is there a place to find historical chart data that goes back much farther than the charts currently supplied with most brokers (I'm trading on Oanda's FXGame at the moment, for reference)?

I think Tradestation is a great backtesting software, maybe the best. However, it's not free unless you trade using their broker. Metatrader is another backtesting software which is free.

Bjorn

I was reading Barbara Rockefeller's book Technical analysis for Dummies, I make a habit of re-reading good trading books. The book is a primer for TA. She apparently trades mostly in forex- so the book has some various examples using the spot market.

The book mentions on several occasions that all indicators, moving average lengths, setups should all be backtested on the vehicle traded. Would backtesting a EA in metatrader be adequate. How far back does metatrader go and would this be considered "historical".

I am afraid that If I really start backtesting all indicators and setups on 5min-15min-60min-240min-daily timeframes on the majors- I will open up a pandora's box that could take a lifetime. Not to mention the whole fact of the markets being dynamic, always changing, so the past could theoritically be irrelevant.

Is their any good material or refrences concerning backtesting in the forex spot market??

M Rippy