I recently scored a good amount of PowerPC stuff, including a 7500/100. Originally DOA, I found the cause of the problem to be a lack of ram and hard disk. To my surprise, it had a Newer Technologies G3 card in it. I pulled a hard disk and ram out of a dead 7200, and booted it up.

It's quite nice, and serves as a fantastic bridge machine.

Specs:

PowerPC G3 at 250mhz

312mb RAM

500MB HDD

OS 9.1

Next on my list is to install a Sonnet Tempo ATA card and maybe a Radeon.