If you want an all-in-one with a large, beautiful IPS display with a nice resolution of 2560x1440, but don't want to spend an arm and a leg? Then there isn't a whole lot of choice. Apple has the 27-inch iMac, and HP has the even more expensive Z1 workstation, but now Dell has entered the fray with the more affordable XPS 27, also called the XPS 2710. And it's an excellent all-in-one. The beautiful 27-inch IPS display has outstanding colors, and the high 2560x1440 resolution makes it a great computer to work with.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips