So today, I tried out the iPad (I'm in the UK and a local from where I live has one) and I absolutely love it and instead of going for a 13" MBP, I think I'll go for a nice iMac. Trouble is, I'm not sure what size screen to get. It'll either be the higher end 21.5" model, or the base 27" model. The computer will be around 75-90cm away from my face as well, and I'm pretty sure the actual computer will be able to sit on my desk. I don't NEED this screen but should I still get it because it's bigger?