okay guys it has to be from Amazon.com coz i like buying stuff through them.. i found this one i guess it works with my G3 Clamshell right? http://www.amazon.com/80GB-ATA-6-2-...1/ref=sr_1_1/002-1113844-1428824?ie=UTF8&s=pc i don't want something over 60-70$ thats my max so if you could help me out that would be great! i also found this Maxtor http://www.amazon.com/Maxtor-Diamon...8/ref=sr_1_7/002-1113844-1428824?ie=UTF8&s=pc its much cheaper than the Fujitsu(above) but am not sure if it works or not. i don't know whats the buffer for when it comes to HD's and also the pin? Thanks in advance!