I am in the process of saving money to purchase the above. I have been a Windows user since Windows 3.0. My reasons for changing are simple, I want a simplistic setup (I'm sick of the cords), I like the way Mac OS installs software, Windows (although its a little better now) likes to place files everywhere and lastly, For the first time in quite some time, I don't think Microsoft will change, unless they get rid of Ballmer and put someone with a vision into the CEO spot. 3 years ago I bought the iPod touch, mostly to replace a Windows Mobile Device. This past year I visited an Apple store to buy an iPad and played with the previous version of the iMac. Being a photographer, I was impressed with the display, I thought this might be nice (except the glossy part) I am familiar with OS X as I had it installed for a short time on my PC, I liked it for the short time I had it installed, it was frustrating going back to Windows. I am sure Apple has this all planed out, they knew that people using the iPhone, iPod and iPad would eventually buy Macs... although the iPad was a reason I decided to change, OS X was the main reason, its more complete and doesn't come in 50 versions. By the time I get the money, they will probably have new models that cost a little less, and honestly, the 27 inch i5 is more than sufficient, maybe all it needs from the default setup is a little more ram. I am spoiled with 8 gigs now.