A good futures dealing platform

Does anyone do futures here? I am on the hunt for a reliable futures platform, preferable internet-based since I spend half my time at university (although there are ways around it). CFD providers are much too expensive for futures trading.

I am mainly looking to do mini-contracts of the Nikkei 225 index and the ASX200/SPI, and maybe the odd DJIA contract.

I used to use First NZ Capital back in the 90's. (Formerly part of CS First Boston, until they downsized in NZ).

Of course this was pre-internet days...