If I'm not mistaken, you'll need to find yourself the fastest Nubus Macs you can find. This typically means you will be running Mac OS 8.6 or perhaps even 9.0? The last Macs that had the Nubus expansion bus were the very first generation PowerMacs, and even if the Eyelike software isn't PowerPC native, it will probably still run in emulation, although I don't know what that'll do to the performance.
If I'm not mistaken, even the 2nd generation PowerMacs were already equipped with PCI expansion slots, so you'll be out of luck there. So this means you should either be looking for a Motorola 68040 powered Mac Quadra, or a PowerMac 8100/110. You'll typically be running the software on a computer that has a 66MHz - 100MHz CPU in it.
I've never seen or operated an Eyelike DCS myself though. Perhaps someone who has can provide something more specific.
shutay