Signing up for the newsletter paid off. I was on the fence about dropping $170 on it, but at $100 it's golden. Ordered one this morning so I figured I'd pass on the word.

FYI from the email:

[align=center]Limited Time Offer on X-keys PS/2 Pro Keyboard.
 [/align] [align=center]Get an X-keys Professional (58 keys) for less than an
X-keys Desktop (20 keys)[/align] We have reduced the price on our X-keys PS/2 Professional keyboards from $169.95
to only $99.95. This offer is limited to one unit per customer.
These X-keys are new and backed by our full warranty.

This offer is limited to three days, (April 4th – 6th).
Orders will be processed on a first-come first-serve basis.