Yep, I'd get your Dad to do this if he has experience with such things; otherwise find a television repair shop and see what they'd charge to do this (they can probably help you with disposal of the bad CRT, there are regulations about how that is done in a lot of places now). I have seen projects that take the iMAC and put it into different cases and I even saw someone who took one and mounted it inside one of those 19" - 20" CRT type Studio Monitors with the three legs that look like big iMAC's! This project was a lot of work and I wouldn't recommend it. The LCD thing at least looks approachable and a great learning experience.