Hello, I have been doing some reading and just have some questions, I have a ps2 modded with the apple mod chip, backups work great. I now am looking into the HDD with the hd advance 2.0. I would like to go with a 200gb unit. if I am correct I can just buy the hd advance 2.0 and then just pick up a HDD on sale from best buy or CC. is there anything else I should know before buying. thank you.