I've been using a WD 500 GB and a WD Passport 160 GB to back up individual files and Time Machine on my MBA and my sister's MBA and MBP (not the unibody). However, my dad is about to start using his MBP (not the unibody either). And I need more storage since we work with music and video files alot. Keep in mind that the family computer is still a 2 years old PC from Bestbuy running XP. Now, people on the forum keep talking about the fact that it's better to build your own external drive rather than buying a ready-made drive. I have not have any problem with the WD drives yet (knock on wood) and the local MicroCenter is having a sell on them (640 GB for $99+tax) or I can pick one out from Amazon. I toy with the idea of building my own external for a while now and I came up with this bare drive http://www.amazon.com/Western-Digital-Caviar-Black-WD1001FALS/dp/B001C271MA/ref=pd_bxgy_e_text_b but I don't know what enclosure and any needed additional things to buy with it. Please give me some advice, I can follow instructions pretty well so as long as I can find a decent guide for installing the drive into the enclosure and correctly formatting it for the computers, I'll be fine. I also want to keep the budget around $150 or so, not to exceed $175, since I can probably get the regular WD 1TB external for around $160 on sale somewhere within the next few months. Oh, and anyone have any ideas about network attached storage, including a decent router (of course, the budget would be increased accordingly) I'd appreciate it. Edit: I just found this on Amazon. Looks very tempting... http://www.amazon.com/Western-Digit...000VZCEUI/ref=pd_ts_e_1?ie=UTF8&s=electronics should I?