If you miss the flying toasters, you can get a Quartz Composer screensaver that imitates it for free from http://uneasysilence.com/toast/ .
The only thing that bothers me is that the toasters don't fly in quite the same pattern, but it's a darn good recreation otherwise. Puts some retro vibe into Snow Leopard.
Ah, those were the days. I remember "Talking Moose" as well. Having a computer that insults you is an underrated pleasure these days. =)
With an appropriately offensive fortune file and xscreensaver's noseguy hack, you can continue to experience the pleasure of an insulting computer.