Copy data and settings from G5 to Intel

Hi, at this moment, we have an XServe G5 running. Last week we bought a new Intel XServe. We want to copy all the settings and data to the new server. But, what's the best way to do this? The server runs - Open directory (every client computer uses this) - Windows service - Mail server, based on the built in mail server - Web server - AFP server with user home directories - DNS Server I tried to copy the open directory using the archive function. Using mailbfr I copied the mail settings. But... it was not stable. After a while, I had to restart the server. Also, some users couldn't get their mail. So, any suggestions?