What chipsets z79 or x68 gaming?

Those chipsets are for socket 2011, mainly a workstation socket, but also for those who want many pci-e lanes. It will come after april.

The ivy bridge desktops coming in april will be socket 1155, like the current sandy bridge. There will be an update to the z68 chipset which will be the Z77.
I think that will be the chipset and cpu of choice for top end gaming.