I'd say not many left, sadly. As Mike said, the Centris line didn't last for long, as Apple later merged it with the more successful Quadra line, and even so, they were often underpowered, with 68LC040's instead of full '040s, and often came with less RAM and smaller HDs than their Quadra counterparts, and as much I hate to say it, i'd imagine most Centrises (Centrii?) would've been crushed by now :'( But as others said, the good news is that most parts are interchangable between Centrii and their equivilent Quadra.