I received my 27" iMac on Christmas Eve, which was a replacement for a 24" (early 2009) iMac which had a hardware failure. Here are the specs of the machine I received: 27" (late 2009) iMac i5 Quad core ATI 4850 8GB Ram 1TB Western Digital HD In the 3 weeks that I've been using the computer, it has remained powered on the entire time. It sleeps at night, and sometimes it boots into Windows 7, but I haven't actually shut it off at all. I have not experience any hardware issues other than the very slight yellow tinge my unit has, which is only noticeable when performing a test for it. I do not consider myself an Apple apologist when I say that the screen on this iMac is fantastic and less flawed than other displays I've had prior to this one (PC or Mac). I've pretty much put this baby to work over the last 3 weeks: - Installed Windows 7 via Boot Camp (using the secondary display trick), and used the Boot Camp partition to create a Windows 7 virtual machine in Parallels Desktop 5. Being able to switch to either OS either inside of OSX or by rebooting is a great boon, especially since I do a fair amount of gaming. - For the most part, gaming on this iMac has been very good. I can play a good number of games inside Parallels and they run just fine. Nothing intensive, of course, but both casual games and older games run very well inside of Parallels. On the casual side, I'm playing games like Defense Grid, Plants vs Zombies, and the like. Older games such as the Unreal series, Serious Sam, and Age of Empires 3 run just fine in Parallels at full resolution. I've even been playing a bit of Mass Effect with decent results (stutters a bit, but definitely playable). Starting Windows 7 in Boot Camp enables me to play most current games at full resolution and high settings. Games like COD, Mass Effect, and King's Bounty are smooth as butter. Having an iMac really is the best of both worlds. - i'm constantly reminded why I like the Mac OS so much better than Windows. Even though Windows 7 is probably MS's best OS in years, I still find the Mac OS much quicker and more user friendly. I still prefer Expose and Spaces, and I really like not having to reboot all of the time due to memory leaks, crashes, or just increasing computer slowdown. - The iMac has a very small desktop footprint, despite the huge 27" screen. There are certainly disadvantages to having an all-in-one computer (if something breaks down, you have to get the whole thing repaired). But the sleek design and convenience trumps that, especially with the Applecare protection. It's amazing to me that they can pack so much computer into such a small unit. Well anyway, that's been my experience after 3 weeks. I know sometimes it seems like only people who are experiencing problems post in the forums, but I wanted to take the time to post a positive experience as well. No, the iMac isn't perfect, and neither is Apple. But the Apple products I own are still some of the most exciting!