One of my fellow MS bloggers, Michael Kleef, often posts about DFS Replication. He's been very involved in the R2 Beta and should have lots of good experiences to share. Here are a few of his recent posts on DFS Replication.

http://blogs.technet.com/mkleef/archive/2005/11/29/415218.aspx

http://blogs.technet.com/mkleef/archive/2005/11/04/413647.aspx

http://blogs.technet.com/mkleef/archive/2005/10/03/411868.aspx