Analogue cicuit designs

[The Australian Opera]

I have thought about building a modular analogue synth on an off for years, 
but the schematic diagrams always seem to have out of production chips or 
hard to get matched pair things.  Hasn't analogue synth design matured 
enough that there are commonly available circuit diagrams using easy-to-get 
components?  I would prefer 'perfect' designs (e.g. where all in and outs 
are DC -10 to +10) rather than quirky designs which are supposed to have 
character.  (Sorry if I stepped on someone's favourite Roland box!).

Where can I get hold of some circuit diagrams ?

Cheers --- Bryan
ausopera at online.tmx.com.au