A-Frame reports on his experience with using Windows PC computers and Macs:
I use both Windows OS and Mac OS at work. For design and photography type work the Mac experience is a little better IMO. Adobe PS performance under Windows is mainly affected by utiilites such as antivirus programs that hog resources.
My personal computer is a Mac Pro. Apple warranty and service is very good when their product fails. My (2008) Mac Pro Dual 2.8GHz failed within the first year of ownership. After several tries to fix the problem Apple decided to replace it with a (2009) Mac Pro Dual 2.93GHz. No doubt that my next pc will also be a Mac.