Apple has just shipped Final Cut Server, almost a year after they were supposed to ship it.
"Final Cut Server automatically catalogs large collections of assets, allows searching across multiple disks and SAN volumes, and enables viewing, annotation and approval of content from anywhere using a PC or Mac."
There's a bunch of interesting tutorials on Apple's website. Cool that you can add a single Final Cut project file to server and it will automatically upload all source materials. At $999 for 10 users, it makes sense for a work group, but hard to justify for individuals.
Like Final Cut Pro, you need a Mac to run the Server (OS X 10.5+) but there is a Windows client that works with the server (I guess for those creating assets on Windows machines.)