I have been computing since 77 - The PC MAC question comes up quite a bit. It boils down to what you are using the computer for. The PC has an operating system built on x86 code that is not the best at memory / resource management(getting better with W7) and has lax code writing rules. The MAC operating system is built on a UNIX version code base that is very efficient at memory and resource management. Because the X86 code base does not have very strict code management function it allows for programs to be written quickly, cheaply and in some cases so quick they result in operating system crashes. MAC / Unix has some very tight code rules that result in a more stable platform and much tighter security due to the code rules.(no stack overruns, open channels etc. allowed) However, the cost of writing code for APPLE is higher and because of this there are less programs out for the platform.

I would say if you’re not a power graphic / creative user and not using your machine for mission critical work, then the PC is fine if it has a fast processor and a bunch of memory.

I have a MAC Pro(I do have PC’s) that has been running for about a year; that I have not had to reboot. The operating system does a great job taking care of memory and cleaning up any errors I may cause. I do all of my photography work on the apple and can have 8 gig or more of memory in use at any given time. If I want to stop in the middle of my work and get some sleep, I wake up and my system is still up and running without me having to close down what I was working on.