I really love OS X and I'm planning on getting a top end iMac (making the switch). However I've been a PC user for over a decade and I'm also an IT professional. I'm afraid that it will be annoying doing all Windows at work, and 99% Mac at home since things like copy/paste use different shortcut keys on the two machines. Have you found it easy to remember to use the different keys while on different machines? Do the differences between the two throw you off? I'm afraid I would get too comfortable with OS X and would start being annoyed with using Windows all day at work.