After having lured me with iPods and iPhones, Apple now got me into getting my first Mac, and it's gonna be an iMac. I hope you guys can help me with making some tough choices regarding the details. Processor: Is there any significant benefit from getting a Quad-Core processor? The iMac is intended for home use only, so I will only use it for all these "usual suspects", such as web, casual picture and video editing, e-mail etc. From what I understand about prcessors (which is not much) I'd guess that currently, there's no need for a Quad-Core... but will the game change significantly with Lion? If going for the Dual-Core, is the extra money for the i5 worth it? It would be in my budget, but I also don't want to waste money on things that I don't need. Screen size: I went to my neighborhood Apple shop the other day to take a look at the iMacs. Playing around with the 27 inch model, I have to say that I felt a bit... lost. There's just so much space and it is hard to fill with a browser window, the e-mail client or a Pages window. The Pages window seems to be so small. I also noticed that the menu bar at the top is far far away from the action in the actual application window... So I did not like the 27 inch model so much, until I tried out iPhoto... on such a screen, the slide shows are just stunning. I guess my 50k pictures would look awesome on that, much better than on the 14 inch notebook screen that I'm looking at right now. On the other hand... that's the only thing I might need such a big screen for. For movies, I prefer to turn on my HDTV... But then Lion got me thinking again. Watching the recent sneak peak, I looks like that "full-screen app" topic will be one of the big things in Lion. And maybe, just maybe "full-screen" and "27 inch" do match better than "full-screen" and "21 inch"? What do you guys think? Or how about going for the 21 inch iMac model and getting an Apple TV box to enjoy the picture slide shows on the HDTV? Would that be the better choice? Graphics processor: If going for a 27 inch model, does the upgrade of the graphics card from the 5670 to the 5750 sense? Bigger screen equals more pixels, so does that need more graphics power? Software: Any reason why to choose iWork over Office 2011 except for the price? Another software is Aperture. It seems to me that this is quite similar to iPhoto... just with more features. Is it possible to start with iPhoto and then switch to Aperture later without losing anything (such as faces, albums or events, which I guess is meta data in the iPhoto library rather than the included in the picture itself)? I am currently using Picasa and feel a bit upset about losing all my meta data once when switching to the Mac, but I don't wanna re-build all that again later... . I hope that you guys can help me with that. Thanks!