PAIA Fatman:

If you haven’t heard of this little badboy, check it out. I built one of these 2 oscillator synths. Pure analog! There are also great resources out there for mods to add 2 sub-oscillators (based around the Korg Polysix suboscillator circuit from what I could tell) and LFOs. Mine is in the shop now, but I will soon get some soundfiles up.

It seems a little outdated compared with such synths as the Dave Smith Mopho, but it is half the price and you can customize it. The Mopho has great midi capabilities though…