I was a life-long PC user. I had accumulated $1000's in PC software that I could not just give up. What I did initially was keep the PC desktop and bought my first Mac - a 2009 Macbook Unibody a couple of years ago to sort of learn the Mac way of doing things (still have a LT to learn). Then, a couple of weeks ago, my PD hard drive crashed and was unrecoverable. I took that "opportunity" to make the real plunge and just bought an entry-level 27" iMac (4GB RAM, 1TB HD), However, becuase I have so much invested in PC software, I could not just give all that up, so I also bought Win 7 and installed it under Bootcamp. Now I can boot into Win 7 or Mac OS any time I want - I'm in Geek heaven! I spend about equal time in both OSs. Overall, I love this iMac!