Keyboards seem to be the sort of thing many slashdotters are over emotional about (and why not? You do spend a significant amount of time using one). I'm in the market for a new keyboard (for a Mac, but I can scrape off the window key). On the mac side, the best keyboard seems to be either a Apple Extended Keyboard (or II) plus an ADB/USB adapter or a Matias tactile pro.
On the other side, Unicomp makes buckling spring (IBM Model M) USB keyboards, and Das Keyboard is supposed to be fairly high quality (I like markings for rarely used keys, however). There seem to be a lot of people still using old IBM Model Ms with a PS/2-USB adapter.
Are there any other keyboards that aren't lowest common denominator material?