All from the same eBay seller I got:

2X iMac Mac OS 9 Install CDs

Mac OS X 10.0.3 Retail Install CD

Mac OS X 10.1 Upgrade CD

Only $31.05, free shipping!

Mac OS 9 will go on my B&W G3 and G4. Mac OS X 10.1 will go on my Indigo iMac. [^]