Ipad Bad Idea

Good idea for college? IPAD and the iMac?
I've been looking at the iMac and have fallen in love with him. But the trouble is that it is not portable like the MacBook. I was thinking if getting the iMac to a bedroom and then get the IPAD to take notes in class lectures would be a good idea? I would be able to transfer all that the two "computers." Or that's just a MacBook Pro a better idea? I need advice.
Are you serious? Get a note-taking IPAD classes? I have a netbook – can do much more, is extremely portable, and costs less. I do not know how you plan on taking notes on that thing, or even print – I'm still trying to figure out what is really good on the device.
