...
Mac's have a lot of pro's over windows pcs
1) less viruses
2) faster boot up
3) can run BOTH os x and windows 7 (hell even I'm running this setup)
4) a lot of software that you DON'T have to pay out for where as with windows, to get the same features, you have to buy software.
I know it has been written a lot, but it seems not often enough:
As of today, there is NO/ZERO virus for Mac OS X in public circulation, and hasn't been since the introduction of Mac OS X. A couple of trojans and other malware does exist, but the user has to install that him or herself.