I have a macbook pro with a 500gig internal HDD, and I am soon getting a 1.5TB external HDD that I want to use for storage and to back up my MBP. The HDD I am getting is the WD Mybook Studio. I am unsure the best way to do this since I want to preserve my apps and everything and it is my understanding that time machine won't let me do this, it will just save my media and my user settings, is that correct? Is there a way I can keep a persisent disk image of my MBP on my external HDD? And when using time machine do I have to make a separate partition for it or can I just use time machine on the main partition of the HDD? I am also running bookcamp and runnning XP. To back up anything on that partition will I have to create a NTFS partition on the Mybook Studio and back up things manually? I am really not sure of the best program to use to get the best back up possible. If time machine works the way I think it does (this is my first mac, and I've only been using it about 2 months) the simplest way may be just to use time machine and have a separate folder to store any important apps in case I have to reformat in the future. Thanks, hope I was clear on what kind of program I am looking for, if there is any, and what the best way to partition my external HDD is. I just don't know if theres a practical program that does what I want, and I don't know if I need separate partitions to back up bootcamp files and a separate partition for time machine. Hoping for some help! Thanks again.