Dell just announced the XPS 730 H2C Gaming Desktop. Hothardware already got their hands on a XPS 730 H2C and published a first look and unboxing photos of the powerful desktop for gamers.

Quote from the preview: "In the last half year, Dell has been busy revamping their entire desktop XPS lineup. First came the XPS 420 late last year, a premium multimedia workstation. Then Dell introduced a new mid-range gaming oriented desktop, the XPS 630 early this year. The 630 is a mid-tower sized gaming desktop styled after the flagship XPS 700 series but with more affordable components and a relatively thrifty price tag. We found the XPS 630 to be an excellent machine in our evaluation.
While these new additions to Dell's desktop XPS lineup were certainly welcome, we hadn't seen a major update to the flagship 700 series in over a year and we were beginning to wonder if Dell would ever get around to it. With the launch of NVIDIA Quad-SLI and AMD Crossfire X configurations, the XPS 720 just wasn't looking as attractive as it once was, considering it is supposed to be Dell's top-end gaming machine. An update was overdue. Today, it's obvious that the folks over at Dell haven't been taking any down-time. Instead they have been busy putting together a major update to their flagship XPS 700 series in the form of the brand new XPS 730 that we have on tap for today."
More details on Hothardware.