Yesterday pickup up locally a 23" Apple Cinema ADC (plastic) screen, complete with an ADC to DVI adapter box. Paid $125, but I expect to sell on the adapter on eBay, which should cover much of the cost incurred.

This screen will free up an aluminum Apple Cinema Display currently hooked up to a 2004 G5, allowing me to use the aluminum screen in conjunction with my 12" G4 PowerBook and a 15" MBP instead. I like having lots of screen real estate.