My first Apple was an Apple 2e. When the first Macs came along I had transitioned to PCs but now I have an iMac and a MacbookPro and I love them. I also have a PC because I have software that I have to run that is not supported by Apple. I know I can split my Apple. I tried that but its just easier to have two computers on my desk. Besides, it looks cool.
I work on a MacBook Pro but need Windows for connecting to home office servers. I use bootcamp through Parallels and run both operating systems at the same time. I have a big screen TV on my wall and simply plug in when I get to the office (through an app, I can also go dual screen on my iPad).
I put Windows on the second screen and use Apple stuff on everything I can. My set up looks pretty impressive, too. ;)