According to Computermonger, the trio includes two new small form factor PCs, the Slimline s5305z and s5350z and the high-performance HP Pavilion Elite HPE-190t.
The Slimline s5305z is the cheapest out of the lot. It features options for either an AMD Sempron or Athlon dual core processor right up to the AMD Athlon II 250 and packs 4GB DDR3, up to 750GB of storage (HDD), and ATI Radeon or NVIDIA GeForce dedicated or integrated GeForce graphics. It starts from $299.99 so it's cheaper than what you'd pay for a lot of netbooks or nettops on the market.
The s5350z is slightly more expensive. At roughly the kind of money you'd be paying for a decent netbook, it features an AMD Athlon or Phenom processor, with the option to upgrade up to the Phenom X4 925. It comes with up to 8GB DDR3 memory, a maximum of 1.5TB of storage, and ATI Radeon or Nvidia GeForce dedicated or integrated GeForce GPU. Base price starts at $479.99.
The last of HP's new Pavilions is not as cheap and cheerful as the first two. Boasting Intel's Core i7-980X six core CPU, buyers of the Elite HPE-190t have the option for up to 24GB of DDR3, up to 3TB of storage, and ATI Radeon or Nvidia GeForce dedicated graphics. The Elite starts at $1,899.99