I'm not such a huge fan of Vista. I got this laptop about 5 months ago, and while no one "put a gun to my head," I really didn't have much of an option. Our other computer was totally messed up, we had no cash up front, and the only credit card I have is a Best Buy card so I went ahead and bought it because we had to have a computer.
By the time we bought this computer, you could no longer buy one with XP, and Vista had been out for less than a month. When we took the computer home, we started it up and waited, and waited, and waited for Vista to complete the install. It never happened, so we took the computer back and had to wait nearly 2 hours for the Best Buy people to make us a boot disk or something. Finally we got it working, but after using it for a few months we realize that our computer would be running MUCH faster on XP. Vista is so bloated, and such a resource hog, and has tons of errors so far. These aren't issues we were having with XP. It's a shame that our new laptop is only marginally faster than our other computer that was pieced together with free parts- if we were running XP I'm sure this computer would run a lot better. but it would be a real pain to back everything up and then install XP, so we are still just considering it.
Anyway, that's just my perspective, as someone who doesn't know that much about computers. I've been a bit disappointed, but hopefully the service pack will fix some bugs.
And I looked into the Mac books, and while they look really cool and I'm sure they work great, there is a big difference between $699 for a decent PC laptop on sale vs. $1000+ for the lowest model of Mac Book. There's just no way we could afford that.