Brand new mac user here..... First question. I'm picking up the WD Scorpio 500gb because 160gb just is no where near enough space. I had more space on my 4 year old laptop.... Now I know I could either clone the drive, or use time machine to back it up. I'm wondering which is better, and most user friendly/ straightforward way to go about doing this. Secondly, I have a few applications installed (Skype, Mozilla) that whenever they are run come up on the desktop. I have to eject the program whenever I am finished using it to make this go away. This really bothers me (OCD?) and was wondering if I'm just doing something wrong, or if there is a way to fix it.