I just read about the new VM software called Parallels that runs on an Intel Mac. Heck, I might finally consider getting an Apple Macintosh!
Parallels runs with Mac OS X on Intel 10.4.5 as primary OS (as well as lots of other OSes), and the Guest OSes that Parallels Supports include all the following:
Windows 2003 Standard Edition SP0, SP1
Windows 2003 Enterprise Edition SP0, SP1
Windows 2003 Web Edition SP0, SP1
Windows XP Professional SP0, SP1, SP2
Windows XP Home SP0, SP1, SP2
Windows 2000 Professional Edition SP4
Windows 2000 Server SP4
Windows 2000 Advanced Sever SP4
Windows NT Workstation 4.0 SP6
Windows NT Server 4.0 SP6
Windows ME
Windows 98
Windows 95
Windows 3.11
Windows 3.1
Fedora Core Linux 3, 4
Red Hat Enterprise Linux WS3, WS4
Red Hat Enterprise Linux AS4
Red Hat Enterprise Linux ES3, ES4
Redhat Linux 7.3, 8, 9
Debian Linux 3.1
SUSE Linux 9.0, 9.1, 9.2, 9.3
Mandriva Linux 9.2, 10, 10.1
FreeBSD 4.1, 4.3, 4.5, 5.4
OS/2 warp 3, 4, 4.5
eComStation 1.1, 1.2
Sun Solaris 9, 10
MS-DOS 6.22
This virtualization stuff is getting really interesting…