You’ve got a household full of PC’s and you’ve stopped yourself from getting a Mac because you don’t want to deal with incompatibilities. Eight years ago that would’ve been understandable, but today Mac OS and Windows can work together in harmony on the same home network. Here’s a primer on how the two systems inter-operate.
I have been using Macs now for 5 years, and the compatibility issues that one would have been there are practically gone. Check out the article at LifeHacker for the full details.