I've used Mac's since 1986. I've taught many Mac classes for over 5 years (Quark, System, Troubleshooting, Maintenance, Filemaker, Word, Graphics, Internet, etc.) I was the Business Manager/Operations Manager for an ISP for 2.5 years. Handled customer support, etc. I currently work on a network of about 100 Macs, with 14 servers doing various server tasks - File Sharing, Key'd applications, Calendar, Remote access, etc., etc. I worked at a University as tech support for over 1,000 Macs. I've consulted on Mac's for over 10 years, etc. etc.