i would have 2 although i dont know what is the diff but most threads reccomended sata drives...but that is the only thing that they hade on sale ,and it kind cought my eye..i mean 35 for 120 i thought that wasnt a bad deal...i even went on one of thier laptops and cheked newegg..lol..
i also found a 200 gig maxtor for $30 but i heard alot of bad things about it..so i went with the 120 seagate..lets just hope i made the right choice