The iMacs are a very capable all-in-one computer. The build quality is certainly nicer than the Dell. As far as the display goes, I doubt the Ultrasharp offers anything special, since the resolution is the same. Apple always has had top quality displays, and the new iMacs are improved over the 2011 models (which I have). They cut the screen reflections by 70%. The i7 is an option, but it will cost $200 extra. If you "trick out" the iMac, the price will go up a fair amount. Regarding the hard drive, Apple has a new option ($250 extra) called the FusionDrive. It combines a solid state drive with a traditional hard drive in one package. Your apps are on the SS part, and it intelligently puts your most used files on the SS aide as well. That. Way, you get most of the speed of a solid star drive, while still having the storage space of a standard HD. It's the way to go for maximum speed if you can afford it. The new iMacs have dropped the optical disc drive, so if you use that a lot, you'll need the the stand-alone SuperDrive added. They also have dropped firewire in favor of USB 3 with the new models. I got a refurbished 2011 27" iMac, and I'm quite happy with it. I saved a good bit of money, and it had the older connections and optical drive still, which I have use for. It as a top of the line BTO machine, with the i7 processor, and 2GB RAM on the video card. The great thing about Macs these days, is that they can run whatever operating system you want. You can partition the drive with BootCamp, and have Windows on it as well. That way, you can boot up as a Mac, or a Windows machine. If you go the "virtual machine" route with software like Parallels, you can even run both OS simultaneously. Migrating your apps and files from a PC is very easy as well....... Apple makes these tasks simple.