Upgrading from OSX 102 -> 10.3

[Galen A Grimes]

What experiences with upgrading from OSX 10.2 -> 10.3 can anyone in this
group share with the others? Specifically:
. Did you upgrade from 10.2 to 10.3 or did you wipe your HD clean and
then simply to a clean install of 10.3
. Did you run into any similar problems to the Firewire/external drive
problems mention elsewhere
. Have you run into any applications/programs that worked under 10.2 but
won't work under 10.3
. Any other caveats or gotchas to be aware of

Thanks in advance.

Galen