I think I'm perilously close to my goal of acquiring all the variants of PPC era Cinema and Studio displays. For my purposes, I'm cutting the end off at the Acrylic displays, although I have 20" and 23" aluminum displays(a pair of 23"s are in daily use on Mac Pro in my office). Here's what I have: CRT: 17" Blueberry 17" Graphite 21" Graphite 17" ADC LCD Studio: 15" Blueberry 15" Acrylic ADC 17" Acrylic ADC LCD Cinema: 20" ADC 22" ADC 23" ADC Here's my list of what I'm lacking: 15" pre-blueberry LCD 15" Graphite LCD(not sure if this one exists) 21" Blueberry 22" DVI Realistically, for space reasons I'm inclined to skip the 21" Blueberry, although if one came along I might be tempted. I know the 22" DVI is REALLY difficult to find(the ADC version isn't exactly easy as I think they ran between $2K and $4K when new). I'd appreciate if anyone else can think of a model I'm missing.