BoxOfSnoo: My main keyboard is a Matias QuietPro (Mac version). Nice tight response and quiet. From what I've heard it may be similar to a Cherry Brown or Red (just guessing).
I also have a TKL Model M hooked up through an Arduino running tmk firmware so I could convert it to USB (and add macros to replace some missing buttons). The best feel bar none but too loud for when I am doing support calls on the phone.
They use Matias switches, which are further development of ALPS switches, after ALPS went out of business. Those are pretty high quality switches.
I am sure you can try to reduce the noise, depending upon its source. If its the noise the switch makes itself, then you can lubricate it with a few drops of any 100% synthetical or teflon oil. Otherwise, if its the noise the key makes when it hits the bottom, you should be able to make an equivalent of O-ring mod, which is a silicone ring (8mm outer, 5mm inner diameter) placed on the stem of the key, which hits switch upper housing at very bottom (instead of key plastic itself), suppressing the hit force.
You shouldn't actually be bottoming out, because its a sign of overpressing the keys - because mechanical switches activate halfway (and tactile versions give some sort of feedback - pressure point and/or "click") down.
But in reality this happens anyway from time to time.
clarry: Kinesis Advantage Pro. It's a buggy pile of shit (snip)
Haha!
Looks like its designed by Salvadore Dali =)
I used all kinds of keyboards, also went through the "miniaturisation desease", but today I love 105 keyboards and don't consider any space used by extra keys or better ergonomics wasted.
Thanks for sharing!