You're thinking about buying a new computer and wonder whether you should get a PC or a Mac? This is an easy one to answer. Because they're both terrific options. It used to be that there was a huge difference between the two. Now, not so much. With the newest operating systems, it's pretty much a wash on ease of use. If you're used to one or the other and happy with what you have, then stick with it. You might also want to stick with what you have so you don't have to buy all new software. Your copy of Word for the PC won't work with a Mac, and vice versa.
But I do have a definite bias towards Macs. Mainly because they are less of a target for the kinds of malware infections that PC's attract. And they come with lots of fun, nifty software already installed - their included iLife suite gives you iPhoto, iMovie, and iWeb, so you can create photo slidehows, photo albums, movies and web pages. To get comparable software on a PC you'd wind up paying quite a bit.
And you'll hear people saying that "on a Mac, things just work." And it's true. Because Apple produces both the software and the hardware, it's easier for them to control how all the pieces work together. So when you connect your new camcorder to a Mac you're able to transfer video to iMovie and start editing within a few minutes. Try that with a PC and you'll spend the next 2 hours trying to figure out how to "download a driver" from the camera manufacturer.
Bonus points also go to the Mac because you can actually run Windows on the same machine, at the same time. It's not possible to run the Mac OS on a PC. Of course you have to buy a copy of Windows to be able to do it, which will add to the expense, but I can tell you it's quite a thrill to see both running side by side on my Mac. And very handy.
But the real deciding factor should probably be - who are you going to call when you have a question or a problem? If your main technical support guru (otherwise known as one of your kids) is PC only, you know what you have to do.