Re: Server Replication Software
If its just files and folders you don’t need anything extensive. You can either use Robocopy, which comes with the Windows Resource Kit, or use something simple like Idem. You can also use Distributed File Sharing (DFS) on your domain if you have users working out of the different location.
Once you start going system/application replication is when you need all those high-tech apps and routing protocols (BrightStor needs something called the floating subnet). That’s when the fun begins. 
PS: I’m getting a de ja vous-ish kinda feeling from this thread. Didn’t you start a similar thread last year? Or was it someone else?