Hi Simmonite (and Stevec too) !
I just joined, been looking around and have just done my 'Hello World' first post too.
@Simmonite - go for it! There's never been a better time to DIY, especially since you have coding skills. Most Analogue stuff can be emulated pretty well in software these days, although I usually prefer an analogue filter myself. We built a PAIA 'Fatman' mono analogue synth kit about 12 years ago - it lives up to its name!
PAIA do a lot of interesting stuff in this area, but it does look expensive to me now that I'm retired.
There is more interesting stuff in the Open Hardware cloud around the Arduino project neighbourhood...
Like this Arduino Synthesiser:http://www.youtube.com/watch?v=1LKmtJHSLF0
And the Meeblip:http://meeblip.com/
I'd really like to marry up some keys and a breath sensor with a free synth project to produce an affordable wind instrument/MIDI controller design for publication.