I plan on getting a macbook for college before fall. I have also been reading on how it is relatively simple to use a monitor as a TV. All you have to do is buy a tv card that runs from 50-80 dollars. I have a few questions about this. 1. Can I have my monitor connected to my laptop and have it running an extended screen and watch tv on the monitor and be on my laptop doing something else. 2. If I am running an extended screen on my monitor when I have my laptop open, what do I have to do to be able to just shut my laptop and have everything project onto the monitor, making it my regular screen, not the extended desktop. 3. I plan on studying business and accounting in college, and therefore I believe I will be spending a lot of time on excel and word. From what I've read Microsoft office is horrid on the macbook. Should I just stick to a PC even though I really want a mac?