I did have a very old Filco 5220 (1987) mechanical keyboard but I've just stripped it for the Cherry mx switches after it was accidentally dropped from a significant height by a colleague.
I'm actually embarking on a bit of a diy custom keyboard specifically targeted for use with Photoshop; which is where I intend for the these recovered switches to be implemented. That said, I am starting to get a bit of serious admiration over some of the mechanical keyboards on the forums and hadn't seriously considered buying one, but some of them are true works of art which makes the idea of a (possibly custom built, if not custom coloured) full mechanical keyboard very appealing.
p.s This forum is a hive with people and information, I love it! I lurk no more.