updated 02:00 pm EDT, Tue September 25, 2001
Apple's Website has order information on the OS X 10.1 Update CD, which is available via mail order for $20 (to registered users of OS X) and for free at local retail stores. It officially goes on sale on Saturday, September 29th. New information is also available on OS X Server 10.1, which has "performance boosts, enhanced workstation management and software RAID support." The update is also free to registered users and can be ordered online for $20 (shipping & handling).