Congrats on the new iBook. I just bought a 15" Powerbook last week to replace my year old iBook 14" which I am giving to my Mom. I was a PC guy for a long time and now I can't understand why anyone would use a PC unless they have very specific software that only runs on Windows.
The spyware thing is just completely out of control. My parents have been paying some guy a couple hundred bucks every few months to revive their PC because it is so constipated with spyware.