Vintage Synth Repair

Hi everyone,

I am new to this group.  I am a vocalist and keyboardist in the  
Sacramento area of California.  Most of the performing I do is in  
church settings, but i also have a jazz a cappella group that I am  
directing.  We sang last week at a pub in Sacramento and it went  
really well.

Lately, I am working on gathering some equipment to experiment with  
voice -to-MIDI technology.  I just bought a Roland VP-70 and got it  
last Thursday, and will be experimenting with it.  I don't want to go  
the software route just yet, and hope to gather some hardware units,  
get a functioning pitch-to-MIDI system, then start using it with live  
looping to create full arrangements and sing over them.

does anyone have any pearls of wisdom for me in this pursuit?  I've  
heard that the Voicetracker is probably the best pitch-to-Midi device  
ever made, and have put an offer on one that currently resides in  
Germany.  Does anyone else have one lying around that you would be  
willing to part with?  or, does anyone have experience with other  
pitch-to-MIDI devices that they have found successful using voice?

Thanks.

Michael C.