Antec is showing off two new cases at CES 2011. The Sonata IV is paired with the 620W Neo Eco 620OC power supply and includes two USB 3.0 ports. There are two HDD cages and the intake fan is now located on the right side of the case. The MSRP of this new model is a whopping $199.99 but it can already be found at Newegg for $169.99. For this price class we're kinda disappointed that the case doesn't have a black interior.
As you can see in the gallery below, lifting the side panel also reveals redesigned internal storage bays. Two compartments, one atop the other, each contain a pair of hard drives laid on their side and fastened with two removable brackets (which, thankfully, still have rubber grommets to isolate hard-drive vibration). A 2.5" solid-state drive can also be strapped to the top hard-drive compartment, facing the motherboard.
The Antec One Hundred on the other hand has a MSRP of $60. It has an all-black design and provided only the necessities, although USB 3.0 seems to be lacking.
The One Hundred takes after the popular Three Hundred, offering a no-frills design with a good number of enthusiast amenities. This particular model has a cut-out in the motherboard backplate for the CPU socket, some cable-routing holes, holes that can be punched out for liquid-cooling pipes, and an upside-down layout that places the PSU at the bottom. I believe Antec will be shipping the One Hundred with dual 120-mm fans (one at the top and one at the rear).