HP announced a new range of desktop PCs, along with an update to their MediaSmart Server software for TouchSmart PCs. Slimline, Pavilion and Elite desktops have all been announced, together with a new Compaq Presario desktop.

AMD and Intel processors are available across the ranges, and Blu-ray is an option on some models. The Pavilion Slimline features an AMD Athlon single-core LE1660 CPU, 2GB of RAM and 320GB hard-drive, up to a Pentium dual-core CPU, with twice the RAM and a 500GB drive. The Pavilion has an AMD Sempron LE1300, while the Pavilion Elite starts with a dual-core AMD Phenom II X2 and goes all the way to an Intel Core i7-920 with 6GB of DDR3 RAM, 750GB storage and a 1GB ATI Radeon HD 4650 graphics card.

HP has its sights set on offering up some new computers to desktop PC business users. This line is called the HP Compaq dc7900 and you’ll find starting prices set around $600.

HP’s new Compaq dc7900 line will be available in ultra-slim desktop, small form factor or convertible minitower models. The company hasn’t yet unveiled a lot of technical details, but we do know these models will be Energy Star 4.0 qualified as well as running something new called the HP Firefox Virtual Browser. This is a real-time Web surfing environment which “corrals malicious content from a user’s Internet interactions and removes unwanted programs with a single click.” The dc7900 is apparently the first HP PC to have this offering.

HP recently introduced a new business-focused Compaq desktop PC which is reportedly energy efficient. It is known as the HP Compaq dc5850 Business Desktop PC and you’ll find it with a starting price of around $600.

The HP Compaq dc5850 Business Desktop PC, available now, makes use of AMD Business Class processors, including the AMD Phenom processor. You’ll also find integrated ATI Radeon 3100 graphics with support for DirectX 10 technology, standard support for dual monitors and standard support for RAID technology with data mirroring.