i have a dell computer that over the years i have added to so very little of it is original. i have a 30 GB hdd in there now that i believe is an ATA-133. my question is that in choosing a new hdd to buy do i need to get another ATA-133? my mobo does not support SATA I or II so ATA-100 or ATA-133 is what i need. i will mainly use the new hdd for music and games and movies. thanks for the help.