I am looking for an external hard drive to back up my computer with Time Machine and store my movies on. I would like to be able to plug it into my Macbook and be able to watch movies off of the hard drive itself without having to put them on my computer. Would a USB 2.0 drive be sufficient for that or should I go for a Firewire 400 drive? I would like at least a TB, if not 2 TB. I've found these two: http://www.amazon.com/Western-Digital-Elements-External-WDBAAU0020HBK-NESN/dp/B002QEBMCI and http://www.bhphotovideo.com/c/produ...01881U_1TB_Hard_Disk_Quadra.html#ReviewHeader The LaCie give me the option for both USB and Firewire. I like that. But the WD is twice the size. I like that more because I have a ton of music, movies, and tv shows. If it did not have a read speed fast enough for me to watch movies, how long would it take to copy a 1 to 2 gig movie onto my computer to watch it? Do you think the WD would be able to get the job done if I am watching a movie off of the external HD? I have been reading so much stuff recently that I am rather overwhelmed lol. I appreciate any help.