Cool, thanks guys. 3.1 was the one I was most concerned with anyway, so it sounds like I should go ahead and buy it.
It's a good buy, and you get all the kickstarts aswell.
But if you can get your hands of an Amiga OS 3.5 CD cheap on Ebay, then you have the Amiga OS 3.1 install disks on that one aswell.
