Best among $100 distortion pedals

If you DIY, you can build practically any distortion pedal for around $50-$60!

 

I'm not entirely sure what you mean by "computer keyboard sound" in the context of distortion, but you can get a good "Time Is Running Out" sound out of the Digitech Bass Synth Wah. $90 new, much less used (I grabbed one for $45, I think, a few months ago in the classifieds).

If that's the sound you're looking for, there are also a lot of other synth-y fuzz options out there, including many in your price range.

 

Way Huge pedals are cheap. Dunlop pedals as well.

 

there was a wmd civilian issue geiger counter in the classifieds, but it may be a little more

 

Great! I recommend checking that pedal out. I think the TIRO sound is really good, as do a lot of people (although some purists have other ideas). But it's a fun pedal with lots of sounds beyond that.

 

Try this. EXTREMELY easy to build, the most in depth and easy instructions ever! Pretty much idiot-proof.

 

I use the Digitech Bass Synth Wah on stage. It sounds great, very heavy synth sound. Couple it with the DanElectro French Toast and you can get some seriously scary stuff.

Larry