My computer currently has two 250GB SATA hard drives in a RAID configuration. I have a lot of digital music and want to put that on two external hard drives in order to keep it separate and portable. I have decided to buy internal hard drives and plug them into cases to turn them into external drives. I have already ordered a Seagate 200GB Ultra ATA/100 8MB Buffer Retail Kit, which I think I can just plug into one of the cases that I have ordered and then plug it into the computer (since it is a kit and comes with the necessary software and everything). However, for the second drive I have found a good deal on a Maxtor Ultra 16 PATA 250GB internal hard drive. This second one is NOT a retail kit, so here are my following questions: 1) Will all of these drives be compatible together? 2) The Maxtor, since it isn't a retail kit, doesn't come with any software. Will that one be just as easy as slipping it into the case and plugging it into the computer, or will it take something else? Thank you so much for all your help!