From what I can tell, Amazon’s Deal of the Day does, indeed, look like a really good deal. The Western Digital 1TB desktop hard drive
gets good reviews on Amazon and normally sells for around $90. This is not a portable drive; it goes inside your desktop computer.
I don’t know much more about it, but this snippet from a review seems helpful: “So less technical users may want to believe WD when they say ‘WD Advanced Format drives are specifically optimized for Mac and the latest Windows operating systems such as Windows Vista and Windows 7.’ This drive might not a good choice for some XP users…”