I think a question is what you want to do with the transistor. If for driving something, there are tons of IC drivers for driving high or low and very high current DC or AC loads - even opto-isolated drivers. There are even opto isolated triacs (I've used them to directly drive up to 25 watts of lights for disco effects! 64 channnels for $1 a channel!)
So fill us in and maybe everyone can help with a driver IC or how to select your transistor.