Finding That Sound By Looking For It
A friend turned me toward musicFAQ.net and more specifically their SynthEdit links. Going to http://musicfaq.net/ and then clicking on the SynthEdit link in the frame to the right of the page will give two options. First, a description of SynthEdit and an explanation of donationware.
Support your fellow artists. Help keep donationware feasible for those that work hard and offer their work for free but ask that you support them if you use their work. It's fair, it's honest and it's a incentive to keep music available for those that can't afford expensive programs. Music should be available to anyone interested in trying to learn.
The second option, under SynthEdit after clicking, is SynthEdit sites- which opens a page of links to different developers. Many of these links are defunct, but some are very much worth checking out.
Toward the bottom of the list is tweakbench -clicking on it or the link below will take you to the site.

All of the instruments on the site look a little like the peach synth. I've tried a few of the free VST plug ins from this site. They don't use up much memory (or disk space, or too many processor cycles...) and sound pretty good. I've tried out the percussive toad, the mellotron based tapeworm, and the digilog monomate. The toad has some interesting sounds. No deep bass drums, but a number of nifty clicks, whirrs, and groinks easily tweaked with the very simple interface. I was impressed with the tapeworm VST synth most. A very simple plug-in, its flute patch works well with light distortion and either chorus or flange to create quick, ambient pads or backgrounds. The monomate produced a couple of interesting noises, but didn't respond to velocity triggers. It also seemed stuck on ultra-loud when i tried it. I'm going back to try the rebar synth and maybe the mashup effect.
If you like the gear, you can also wear it. The cafepress site includes tees, mugs, a mousepad, and my favorite -a bumper sticker.
http://www.cafepress.com/tweakbench/
If you'd prefer to try building your own VST you can get the shareware version of SynthEdit (for win xp, nt, 2000, or win 98).

