The problem with the iMac is that all of the electronics are right in your face. The worst part is the power adapter which would emit a lot of EMF radiation. This is especially bad for near-sighted people who have to shove their faces into the screen (just joking; not that close). I have an early 2009 iMac and I never was able to use it comfortably; I always seemed to get a headache/eyeache when using it. The CCFL could also cause problems. A Mac mini is better because most of the electronics, especially the power adapter, is away from you, and only the screen is close to you. What do you think?