I know there have been posts backand forth on the value of .mac, with many people areguing people can get the same services for less. A year ago I plunked down $100 to get the service and have basically liked it fine. Yes, it's probably pricy, but I liked it for its integration and its simplicity, and I re-upped recently (though for less! on amazon.com)
I also recently got a new Palm and have been really good about entering all appointments in my desktop (using ical), then syncing to the Palm and also to my laptop, using isync. A few days ago, one of my daughters was using the laptop. "Uh-oh," I heard her say. "I have dance rehearsal in 15 minutes!" The reminder had popped up on the screen. I had completely forgotten (one of those days with SO MANY things on the clendar I was focused on the most urgeant, which was a choir concert that night.) Off we went. We were in time.
So you see, .mac has its uses!
(I also put together a Homecoming Dance photo page in about 15 minutes, sending the link to all my family and some close friends. Worked out great. Far from professional, but I didn't want to spend a ton of time on the project. I just wanted people to be able to see my girls.