Ok - here we go again. Thanks to everyone that's helped out already -
it's most appreciated.

http://www.johei.com/gallery/rxm/layout_idea

...click on the image for the larger version.

I've drawn up the modules I think I want to get and a first cut at what
modules to get first. I'm planning an initial purchase of several modules
- and then filling in about every three months after that. The numbered
circles indicate the order (although it'll likely shift a bit.)

Several debates yet...

+ I accidentally left out a mixer. Since both VCA's (one audio, one
control voltage) bring in 2 audio inputs - I might be ok. I'm not sure.

+ The 2nd filter is an A-124 Wasp Filter - I might swap that out for
one of the 'warmer' ones since my main filter is the A-106 filter.

+ I ended up with a small slot left - and I threw in the Dual VCA (look
for the #5) - if I dropped one of the other small modules - I could fit a
3rd filter - or some other module of that size. I'd have to drop the S&H
or Ring Mod, though.

I think otherwise - I pretty much have what I want picked out. With
Doepfer's 95 modules to choose from - it wasn't easy... :) I realize
that as I go along - I may find that I'll need some module not planned and
I can make adjustments.

The #6 and #7 purchases - Midi-CV and VCO... yeah - seems odd to bring
those in so late in the game - maybe I'll move them up a bit. But since
I'm going for an "effects rack" more than a "synth" - I put them last.