I'm with eliyahu, I'd buy a newly made Cyberstorm PPC in a heartbeat, especially if they used one of the ~400MHz PPCs like Stachu installs on current boards. Like the Sonnet project, this doesn't just give you access to a "few notable apps" having that kind of power under OS3.9 gives you access to a few hundred Mame, Genesis, SNES games and possibly a large portion of the PowerPC Mac library under iFusion, though iFusion doesn't currently run on anything but a CSPPC/BPPC. Not to mention running GL versions of the various Quake like engines at actual decent resolutions at good speeds.