I'm *very* picky about third button on mice, due to malformed middle finger. So far, I've found two mice with soft wheel press: CM Storm Xornet and WMO. Rubbery wheels on Zowie mice, Belkin Nostromo n52te and new Roccat mice (such as Savu) are okay too. Unfortunately, I'm not aware of anything else, but it doesn't really matter, because I usually remap some thumb button to 3rd button.