I'm in the market for an external drive and would like some advice from people that have used them before. I have a MacBook that I mainly use around the house. I understand the only way to wirelessly backup using Time Machine is using Time Capsule, so an NAS is out (please correct me if I'm wrong). I do sometimes take my MacBook out of town when I travel for work, but mostly for watching movies or browsing/chatting, nothing that would need a backup. My concern is, should I get a less expensive desktop model, and just go in my room, plug it up once a day or so, and do a backup, or, should I get a more expensive travel version. Are they worth the convenience? I've been trying to find one with FireWire, and came across Western Digital and Seagate drives specifically made for Macs (aluminum, FireWire, formatted for Macs). Of course, they're more expensive, but, I'm assuming I can just plug in the FireWire instead of 2 USBs(one for data, one for power). I've thought of building my own, but I've had a hard time finding a decent looking enclosure with the specs I want. I'd want just a normal plain looking one, without lights and advertisements slapped onto the side of it. If anyone knows where I can get a nice looking one from, let me know. In total, I'm looking to spend around $150. Anything less would be great, anything more is pushing it.