eBay has a number of advertised new, sealed in box iMacs and Macbooks. I've found a number of sellers who have high feedback ratings and some who state that they are also Authorized Resellers. Any of you purchased your Mac on eBay before and then used Apple Technical Support? My question is how does your standard 90 day telephone support/1yr warranty work? Does Apple Tech Support care you purchased on eBay and does that eBay date of purchase count towards first day of warranty. Also, can you buy AppleCare from eBay reseller and then register it towards your Mac? My concern is that if the eBay seller is not an authorized reseller or lying about it, does this affect my new product warranty? Thanks.