Floppy Drive on a 3B1 seems dead

[Future Unix Gurus]

In article <3531 at zygot.ati.com> john at zygot.ati.com (John Higdon) writes:
>The drive appears to be a standard, vanilla DSDD-type drive that would
>be used in an IBM PC/XT (360K). You can pick one up for about $70.
>That's what mine cost. You might check the cables first.
>        John Higdon

I realize that this question is old, but how easy is it for someone to
replace the 360k 5.25" drive with a 720k 3.5" drive.  I've already found 
a drive source that will sell me the drive.  I want to know the steps to 
installing this thing.  

	A)  is there a particular "kind" of drive that I have to get
	    (i.e. XT compatible, AT compatible, etc)

	B)  is going to a 720k 3.5" drive just a simple procedure of
	    unplug one and plug in the other (I suspect not) if not
	    what do I have to do?  What's that going to cost?

	C)  those of you who have done this, please answer any other
	    questions that I haven't thought of, but you would answer
	    based on your experience of trying and/or succeeding at
	    this upgrade.

Thanks!!
- sparkie
p.s. please e-mail responses to the following address and not to
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