duuuh use both have parallel windows running dude.. there are tons of virtual machine stuff that runs pc and mac same time... people at IT do this to learn different Operating Systems.. they cant be moving from 1 pc to another all day long.. u can have tons of different OS's running with virtual machines.. cheers
So again, bypassing everyone's personal experiences and preferences: If a Mac is within budget, and if it meets your configuration requirements, and your physical requirements, and esthetic requirements. Buy it if you see any advantage at all in running Apple or Mac OS software, because a Mac can run though as well as run Windows, where as a typical PC cannot run the Mac OS.
I bought this white MacBoook for almost 5 months. So far, I've never encountered any viruses at all. It's so good to know that there's a place without virus in this IT world. Sure I got one every now and then but my computer would treat as something it doesn't know and I'd just delete it right away. So if you could afford one, go for Mac.