Don't know about the accelerator, Daystar is either out of the Mac business altogether, or at least not making accelerators anymore; Sonnet resells some Daystar stuff; a web search should yield more info. Quadras vary significantly in their apparant speeds; we've had Quadra 605s (an LC-II class machine, 16 or 25MHz 040 sans FPU), Quadra 700s (Mac IIci form factor, 25MHz 040 w/FPU), Quadra 650s (33MHz 040 w/FPU), Quadra 800s (80MHz 040/40MHz bus w/FPU) and the similar Quadra 840AV which has two SCSI busses (busi?) using a different chipset or on-board acrchitecture. But as a comparison, on some tasks, the 25MHz 700s are as fast as the 33MHz 650s; on other tasks, the 650s were faster. I have a Mac IIci at home with the Radius Rocket installed (mine is the 33MHz version). Different accelerator (the rocket has its own RAM and plugs into a NuBus slot); it is definitely not as fast as a Q650, and maybe not even as fast as the Q700. However, software was available called Rocketshare which made it possible to run the Mac in sort of an SMP mode. The earlier 800k floppy drives weren't Superdrives (actually standard 1.44/2.0MB floppies), IIRC; I think the Mac IIci was the first with those. Not sure if a retrofit is possible. Mac owners tend to have been less sophisticated, and either never cleaned their floppy drives, or cleaned them wrongly; however, I've seen few that totally quit working. They usually just refuse to read floppies written on drives other than themselves. regards, -dq