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Any brand will work (and there are only 4 for 3.5" IDE drives, Seagate/Maxtor, Western Digital, Hitachi and Samsung.

Seagate has the best warranty, 5 years - so I would go with them or Western Digital (3 year warranties on their OEM drives which you can get at any online place like NewEgg or OWC).
 
Another vote for Seagate!

Seagate! And go for a 7200rpm too for speed! You'll notice a difference!
 
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