Although Intel still did not officially launch the Intel Haswell Refresh CPUs and the new Z97/H97 Express chipset, Newegg.com has listed a bunch of motherboards and some of them are apparently already available.
The list includes a wide offer of motherboards based on either the H97 Express chipset or the Z97 Express chipset and most of them are from Asus, Asrock, Gigabyte and MSI. The cheapest one, the Asrock H97M Pro4 based of course on the H97 Express chipset, starts at around $82. For about $100 to $110 you can get a Z97 Express motherboard based on standard ATX form factor, such as the Asrock Z97 Pro3 and Gigabyte GA-Z97-HD3.
The more expensive motherboards on the other hand go up to $400 and the most expensive one comes from Asus, the ASUS Z97-Deluxe.
Most motherboards are currently listed for pre-order, but some, including the high-end Asus Z97-Deluxe are already available and ready to ship. You can check out the full lineup over at Newegg.com.