Let's talk about this model. A lot of people decided to buy 27" model, but... I'm web-developer and it's more useful for me to get 21.5" and additional monitor (24", I think — one for IDE, another for photoshop or for browser). Maybe I'll buy top 21.5" model, but still some questions: First of all... not user-accessible RAM slots, — is it means soldered RAM or just need to take off screeen to get access to RAM... the same as HDD (for replacing it)... How hard to do this in comparison to previous imac-line? 1) What's your opinion? 2) Why 21.5", not 27" for you?