I whole heartedly recommend the Cybervision 64! 1. It is faster than any card except maybe the Picass IV, and 2. It complements the Amiga 3000 very well, as it integrates nicely with the built-in Scan Doubler/Flicker Fixer. You simply daisy chain the supplied cable to the VGA port on the 3000, and you have a 1 monitor solution. If you were to get a Cybervision 64/3D without the Scan Doubler you would not be able to view native screens without a monitor switcher. Not sure on the GVP Spectrum, but the CV64 is faster. I use one in my 3000 system and it rocks.