Uh, WXPUser, later models of Amigas came standard with ethernet (some had expansion slots, you could add on) and you can run a good chunk of GNU stuff on them, not to mention the "official" Amiga web browsers.
As for the Amiga's multimedia capabilities, their video cards were fantastic, especially the Video Toaster.
[ November 14, 2002: Message edited by: Ravuya ]