Can drive with 6.1 be directly transferred from one machine to another?

[Garrett Cooper]

    Ok, so the back story is that something hardware-related in my older 
machine fileserver died, all the info's on a series of SCSI disks, and 
my other desktop doesn't support SCSI, nor does it have the space for 
the drives/card (yay for dell), thus I need to either buy replacement 
parts or buy a new machine (I'm weighing the pros and cons right now).
    So I was wondering if my disk with all of the compiled binaries for 
my 1.2 GHz could simply be moved from one machine to another and just 
work without having to reinstall or recompile FreeBSD or not. I would 
think that I could just move the drive to another machine and boot from 
it, given the fact that Intel loves making their instruction sets 
backwards compatible, but I just need to make sure since I don't want to 
invest in something more expensive and discover I have to start from 
square one.
    Overall, time is of more value to me right now than anything else.
    Thanks,
-Garrett