My only major requirements are, as the title says, 104-key US layout with Cherry MX Browns. Beyond that, I would also strongly prefer a keyboard that doesn't have "extras" like a second row of F-keys, trackball, etc. (ruling out the cheap Compaqs on eBay) because of limited "vertical" deskspace (plenty of horizontal!). I'd prefer a keyboard that's not actively falling apart, but I don't have anything against certain makes like the Ducky or PLU.
I'd like to keep it under $80 shipped, but we can always see if need be. . .
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All squared away. Thanks, everyone!