I'd keep the 1084 for the games and demos. There are some things in the operating system called "coersion" and "mode promotion" that will attempt to force all of your applications to use your BlizzardVision GFX card but demos and games bang away on the hardware directly so there is no way to force them to use the operating system... unless you run them under the PowerPC version of UAE that will come bundled with AmigaOS 4 when it is released.
