Ken, I've had my MacBook about 6 weeks now - successfully migrated the business accounts from Windows Quick Books to Mac Quick Books and emails from Outlook to MacMail. The conversion is complete and I have a Windows free system, the only Microsoft product is Office Mac.
I have an hourly backup performed wirelessly and automatically (Time Machine and Time Capsule), offsite backups with Mobile Me and a battery life of 6-7 hours.
I spent hours yesterday eliminating Hotbar from a friends XP laptop, it just reminded about the bad old days. Every time I revert back to a Windows computer it feels like a retrograde step. I'm surprised how quickly I've been converted. The future for my house is Mac, when the next PC dies it will be replaced by a computer that boots in seconds, doesn't need anti-virus software and is fun to use....It's not perfect but way closer to perfection than what I've been having to deal with from Microsoft the last 25 years!