I've had a 3000/400 in use on-and-off for the last few years.  (it
produces quite a bit of heat.)

I even have 100mbit on it as of last night:

fta0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 4470
        address: 08:00:2b:a2:7c:88
        media: FDDI Single-mode
        status: inserted
        inet 10.0.0.27 netmask 0xffffff00 broadcast 10.0.0.255
        inet6 fe80::a00:2bff:fea2:7c88%fta0 prefixlen 64 scopeid 0x2

now to get a PCI FDDI card so I can actually make use of the speed.  (:

-- 
  Aaron J. Grier | "Not your ordinary poofy goof." | agrier@poofygoof.com
              "silly brewer, saaz are for pils!"  --  virt