Taken form the bottom of the add at ebay.
"USED MAXTOR MAXLINE II 250GB IDE ATA HARD DRIVE. Model number is 5A250J0. Item has NOT been tested. Item is covered by our D.O.A policy. This is only for the drive, and does not include any accessories, cables, or mounting screws."
"The drives are nosier than new drives, but it isn't very noticeable inside a desktop system."
If I remember correctly Maxtor have a 1 year warranty and if it is used and making noise I would say stay a way.
I would watch the Sunday ads for a new Seagate drive, which have a 5 year warranty.
Just my 2 cents.