What I mean is some type of hardware device, or software, that take your voice and you can adjust the pitch, tone, octave, etc.... even that cool "robot" like sound in techno.
eventide's the ****. i've not actually used this model, but something a few generations back.
something else? kurzweil ksp8. i've got the rumour, it's reverb-oriented baby brother. also the ****. similar to the rumour is the mangler, which is more general purpose effects and not so reverb-heavy.
last two are a much more affordable $500-550, if you can find one.