The only online support chat for Apple is available for iMac and certain kinds of iPod owners.
You can talk directly to Apple for phone support 90 days for free, and an additional 2 years and 9 months from date of computer's purchase if you buy AppleCare for your Mac within the first year of ownership for any Mac model. The phone numbers are worldwide on this page:
http://www.apple.com/contact/phone_contacts.html
Note the purchase date would be from an authorized service center. Some factory refurbished machines can also have Applecare added to them depending on where you purchase it from, and people who currently have AppleCare, can transfer it to the new owner by calling AppleCare with the new owner's information.
Message was edited by: a brody