On Dec 9, 2009, at 7:35 AM, Josh Koffman wrote:

> I think Time Machine itself works with any USB hard drive.

Time machine seems to work with ANY drive.  I had a 300G internal  
drive that I was using for TM backup, but it filled up and I just  
recently replaced it with a 1TB drive (<$80 !)

There is also a rather simplistic Backup utility that comes with  
a .mac account (now "Mobile Me"), plus standard commercial offerings  
like Retrospect, plus standard unix utilities like, um...

I like the non-invasiveness of Time Machine.  Once your initial  
massive copy is done, the additional copies of modified files is  
painless and invisible.  "Real" backup utilities take an hour just to  
come up with a file list :-(

(However, I have never had to USE the TM backup, so I'm not entirely  
sure how useful it is for recovering from assorted types of disaster.   
I am somewhat annoyed not to find disk image utilities for MacOS,  
since that has become my preferred mechanism for backing up PC disks.)

BillW

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