I started this thread to mention a monitor calibration issue with Vista and it's turned into a Mac discussion. Based upon one post, I *did* discover the User Account setting that greatly reduces the number of security dialog boxes Vista gives you (but doesn't eliminate them entirely). While this helps a lot, there's no reason for Vista to disable monitor calibration profiles after the box appears (that was the point of the entire thread).
As for Macs, I have no doubt they work better with their hardware, less driver problems, etc. No doubt at all.
What's irritating for me, however, is the inability of Mac owners to recognize WHY PCs are 95% of the market and Mac's aren't - single sourcing. PCs are extensible and there are literally thousands of suppliers, hence the wider selection of software and hardware. Since Macs come from one place, they can control everything about their architecture but at a higher price. I'm not saying I won't use a Mac, but 20 people making video cards is a better choice than 3, for example.
Again, Macs are wonderful machines and you're not making a bad choice in getting one. I nearly got one for my daughter's HS graduation a few weeks ago, but deferred to PC so that she could have the standard software - Word, PP, Excel and whatever else the college wants her to have.