Backtesting with something other than MT4?

What other alternatives are there for backtesting platforms besides mt4 (other than writing your own)? E-signal? I would be willing to pay for it, so long as it had a good reputation and solid support base.

I haven't given up on mt4 yet; I just want to know what the other options are.

ninja trader - the paid for version. trade station - "easy language" - cost or open a big acct. cqg. esignal - yes, good. amibroker. strategy runner. others have api interfaces.