Just unrelenting hunting on Craigslist, eBay, and Facebook Marketplace. I think I got the PTPro on Craigslist.
I actually have a PowerCenter 150 slim-profile Desktop (and a spare Sonnet G3 400/1M CPU upgrade for it) that's currently in storage. I haven't decided if I should try to find a good home for it yet. The PowerTower Pro replaced it in my office collection because I wanted a box I could cram full of esoteric tech:
- Formac Proformance 3 (3DLabs Permedia3)
- 12MB 3Dfx Voodoo2
- OrangePC 660 w/ K6-III
- Digidesign Audiomedia III
- ATTO Dual UltraSCSI
- Sonnet Encore G4 800/1M CPU (which is both cool and also finicky as all get out)
It's got one PCI slot left which I want to plop another Voodoo2 into for a vintage SLI setup.
All that said, both my SE/30 and my 7100 are packed to the gills with even weirder toys. :-)