I found this, which looked interesting: http://wiki.onmac.net/index.php/Triple_Boot_via_BootCamp Also, Apple released a new version of BootCamp that supports the Xserve on Aug 16. If it'd work, and you could shoehorn a PRI card into it, man wouldn't that make a nice Asterisk box? And at $2999, quite competitive with a DL380G4.