I have a Powerbook that was bought in 2003... So its currently going on 5 1/2 years. I'm worried thats its not going to hold out too much longer and even though I'm still in school, I figure an iMac might be a better choice since I no longer bring my laptop to classes like I used to. Are their any rumors when new iMacs will be coming out? I can tell that the 24" is more popular because of its screen. What are some pros and cons of buying a refurbished iMac? Are their usually holiday deals when buying a new one? Thanks!