Western Digital Caviar SE 80GB 3.5" Serial ATA150 Hard Drive - OEM
RPM: 7,200 Cache: 8MB
http://www.newegg.com/Product/Product.asp?Item=N82E16822135106
or
HITACHI Deskstar 7K80 80GB 3.5" Serial ATA II Hard Drive - OEM
RPM: 7,200 Cache: 8MB
http://www.newegg.com/Product/Product.asp?Item=N82E16822145082
RPM: 7,200 Cache: 8MB
http://www.newegg.com/Product/Product.asp?Item=N82E16822135106
or
HITACHI Deskstar 7K80 80GB 3.5" Serial ATA II Hard Drive - OEM
RPM: 7,200 Cache: 8MB
http://www.newegg.com/Product/Product.asp?Item=N82E16822145082