Wow. What software do you use to produce these?
and for the record, I'm not building a Vox or anything from scratch. This afternoon I assembled this little beauty
http://hackaweek.com/hacks/?p=327
it's a small 1 transistor preamp. I scavenged all the pieces from old computer mice and a broken cd player. It's a decent boost for 3-9 volts! I plan to hook it up to a pair of crappy old computer speakers, and put the whole thing in a small plywood box. My first amp :)