i will be recieving my new iMac 17 inch and i have a couple of questions as far as forming new accounts on the mac. 1) when making new account for my family can i control what goes on from the adminstrator as far as downloads and such? 2) if one of the accounts downloads a program will that show up on my account also? 3) will itunes music be general for all of us or different based on the account? 4) if i did have the option to control these things will it slow down my computer in any way? i have a 2.16 i gig of ram 5) a little off topic but when i installed my mac office 2004 on my PB, i would pick double space for my paper but it was just to far apart so i had to do 1.5 is there a problem with my program and i have to return it or is just i'm not recognizing it correctly?