MOTM

1.) If I use it in one-voice mode, can I use all four Aux outs for CC's?  I 
confess, I'm a twidler.

Yes.

2.) Are there any internal LFOs for trem/vibrato?

Not in the initial release.

3.) Since I want to use it to control a Hz/V osc as well, can it do that or 
perhaps can I create a 'microtuning' table as a fudge?  It's a Metasonix osc 
(and it's some time in the future), so the pitch range is only two octaves...

Yes, there are 14 user-defined tuning tables that are loaded via the MIDI Tuning 
Dump Standard.

In the end, given that I have to buy a new power supply, it's the same price 
range at the Encore Expressionist.  The trade off seems to be the LFOs for the 
arpeggiator.

But you *want* that supply for the VC Pulse Divider, Cloud Generator, uSeq, ....

Paul S.