I have doubts about the claimed huge lead the '60 would have anyway.
There are limits to how far you can push an Amiga, and when you're funneling all that power down through a much slower chipset the losses get pretty significant.
Besides, you invest a crap load of money in this and someone with a Cyberstorm '060 running at 66Mhz in a 4000 is going to tell you his computer is faster than yours (or someone with an overclocked PPC board etc.).
Why not just be satisfied that you already have one seriously fast Amiga and leave it at that?
Hah, you know, you are probably entirely right

I dont't have any intention of running Quake, and as it turns out, Alien Breed 3D 2 is actually playable (when the damn thing decides to run, that is) on my card.
Web browsing is pokey but thats what it is. After I set it to use RAM disk as cache instead of the hard drive, it increased the speed by a bit, and for what I use it for, its quite workable.
So yeah, I think I'll focus my efforts on adding a few missing bits to this machine (printer and subway mainly) and eventually an Indivision to replace my external scan doubler instead.
The scan doubler I have works pretty good, but it doesn't like the interlace screen modes.