I have been looking for a Macbook to use for work. I mainly would use iWork 08, Safari, Mail, and iCal. I want to buy one used or refurbished because I already have an iMac at home. It should be able to run iWork and Leopard. The best deals that I have found are refurbished for $849.00 or a used one for $800.00 on Amazon. Ebay and Craig's List seems way overpriced. Should I be looking somewhere else? Do I need to worry about battery life? How about AppleCare? Any other advice is appreciated.