OT: Vocal Harmonizer recommendations? - VST solutions?

[rs@moinlabs.de]

> is why I settled for the FireworX instead of the Eclipse and today I  
> have even sold the FireworX and set up almost those "add-two-notes"  
> patches with VST plug-ins. (I'm also doing live harmonization on the  

Which plugins do you use here? I've yet to find a pitch-shifter plugin 
which is a) less synthetic than MadShifta, b) faster/better tracking than 
the Waves stuff and c) less CPU-hungry than everything I know except for 
MadShifta...

            Rainer