One of Datamancer's latest projects, "The Archbishop"

Watercooled Steampunk PC mod by Korko_czong, more info here (polish).

PC made by Dave Veloz, more info on Steampunk Workshop.

Also Datamancer's project called "The Nagy Magical-Movable-TypePixello-Dynamotronic Computational Engine"
Mac computer made by Andrew Leman