Hi everyone! I am trying to connect a DELL 30" UltraSharp 3007WFP LCD monitor to my older Power Macintosh G4 tower (Mirrored Drive Doors) with dual 1.42 GHz G4 processors. The factory installed graphics card only allows the 30" Dell to display and operate at some low resolution - making everything seem too large and pixelated on the display. I would like to have the monitor display in its highest resolution, using a dual-link DVI-D graphics card that supports 2560x1600 resolution. I already tried two graphics cards that are capable of this high resolution, but either did not fit or did not work with my older Mac. I would like to know, specifically, which name and/or model(s) of graphics card would work with my older Macintosh and display utilizing the 30" Dell's highest resolution of 2560x1600. Thanks for your help!