Okay, after following the Das III rollover drama, I've decided to find another option. I'm willing to pay $170 Cdn for a good keyboard. Not so for a keyboard with bugs, whoever's fault it is. I wouldn't mind finding a Das II, but those seem to be extinct or cost prohibitive.
I use a legacy Model M at work, and I've owned two of the modern Unicomp Model M's, and been duly impressed with them. I had an email exchange with the guy there (this was like four years ago, so I should probably double check...), and he indicated using blank keys would be a non-issue. They don't seem to make black keys, but that's nothing that a little matte black krylon couldn't fix. Still, the grey and black colour scheme is somewhat lame.
I'm more interested in finding information on the M10, as that seems to be the only other realistic option. I can't seem to find any place to order this that's either in or will deliver to Canadia, but aside from that issue it looks kinda blah. I saw a few links to replacement keycaps, but they all looked like ass -- nothing simple and attractive.
Edit: Hrm, maxkeyboard.com isn't going to charge me any shipping to Canada on the M10, so I guess that solves that problem. Guess I'll give the M10 a go. The shipping was what was scaring me anyway.