It's been out a while so I assume there are different versions which would account for so many variations on Newegg:
these are all Intel 320 160GB: (I realize some are OEM, but 2 are full retail boxes with one being $249 and another being $320):
http://www.newegg.com/Product/Produc...&x=-905&y=-112
these are all Intel 320 160GB: (I realize some are OEM, but 2 are full retail boxes with one being $249 and another being $320):
http://www.newegg.com/Product/Produc...&x=-905&y=-112