Okay, so right now I use a Windows laptop, and I am currently looking into changing to mac. I have used a macbook before, but it crapped out on me. What I am wanting to do right now is use Apples incredible displays, whether it be an imac, thunderbolt display or cinema display, as a replacement for my TV. I don't plan on using cable, I just want to use netflix online and use a USB blu-ray player to watch blu rays. Would I be better off buying a macbook air+display, imac, or mac mini+display? I would like the portability of the macbook air, but at the same time I would kind of want something more powerful. I guess I don't really know completely what I want, just something to browse the internet, watch movies and such. Thanks! Also, what is a good size screen? Is the 27inch that much better, or is 21inch good enough, or even the 24inch I am considering, is it good?