Dual booting w/ two disks

[Brian M. Kincaid]

I have been running a dual boot system with Windows and FreeBSD on 
separate disks for several years. I use just the basic FreeBSD MBR boot 
program, installed using the procedure described in the Handbook.
  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/boot-blocks.html

Windows XP needs to be on the first disk (Disk 0) and you can put 
FreeBSD on the other disk. Windows installation will clobber the FreeBSD 
boot block, so you need to write over it with the Handbook procedure.

Brian