It is interesting to me that we are still having this discussion. So today, my comments will be brief.
In reality Mary, it's not really a decision between MAC or PC. If that surprises you consider this. MACs basically use the same hardware for their core system as PCs do. They use Intel CPUs, Intel and NVIDIA graphics. They even use the same type of memory. The biggest thing that differentiates Apple products from PCs is their Operating Sytem.
MACs in general take the approach that when they sell you a product it has been certified as MAC friendly. You can even run Windows on a MAC if you choose. It would be inaccurate to say that MACs don't have problems, because they do, jut like any other electronic device. But unlike the Windows Operating System, MACs OSX is not as widely available for just anyone to develop applications for it.
I would also say that Apple products in general, use much higher quality materials in packaging their products. What I mean by that is that you see a lot less cheap plastic, and usually a much more ascetic, good looking well made platform. At the end of the day, you are going to pay a lot more for the MAC than the PC. If you spend the same amount of money for a PC, in my opinion you are going to get more for your money in terms of speed, features, and support. Apple has come a long way in closing the gap, but it's still pretty hard to find a MAC under $1,000.00. And that doesn't buy you much. For the same money you can select from a lot of pretty nice PCs with a lot more speed, memory, and better graphics.
At the end of the day it all comes down to what you like and how much you're willing to spend. If you want razor sharp graphics and blazing speed you're going to have to pay for it. For the MAC you're going to pay a premium on top of that. But if your goal is a platform that's never going to have a pop-up, you might just consider using your local computer guy to keep your rig running fast and clean instead of paying an extra $300-$1,000 MORE for the MAC.
I hope this thread doesn't turn into some kind of diatribe about which system is better. I hope instead that we can hear from a number of our members who have owned both platforms and can describe their experiences with both in terms of tangible, measurable differences.
Good Luck Mary