Hi, I have a question and I hope someone can help me. Im going to upgrade my computer by installing a second hard drive. I have seen some hard drives that are internal that are much cheaper that buying an external hard drive. According to someone I talked to I would have to purchase a hard drive that would not go over 5400rmp and the internal drives that I have seen on Bestbuy and all the other electronics stores are 7200. According to the person I talked to they said it would have to be a 5400 because my motherboard would not be able to read and it would not recognize the drive. I have an HP Pavilion a230n. If anyone could help and tell me if that is accurate?? Or is it better to go with an external hard drive??? I have tried to look for the information but Im not sure if Im looking in the right place!! Thanks a lot!