Two from Wired: … on photography and networking.
I turned on file sharing and AppleTalk networking on the new OS X machine and was able to see it on the network from the other Mac, but the OS X machine couldn't see the Mac.
Getting this far was hard enough — it took me ages to figure out where the different settings could be found. Figuring out the problem had me stumped. Finally, a friend told me that I had to check an "Enable File Sharing clients to connect over TCP/IP" checkbox on the Mac. And I'd been concentrating on the OS X machine. Silly me!