ASUS have released very nice motherboard for those, who like to save few $/€
This motherboard is called Striker II NSE. It costs ~300€ in here Finland and it is targeted to Xtreme enthusiasts. Motherboard is almost same as Striker II Extreme, but the chipset is a bit different. This mobo holds 790i SLI chipset and Striker Extreme holds 790i Ultra SLI chipset.
Layout and all features are the same and I quess there is not much difference in bios either. Extreme version will bring you the 2000(O.C.)/1800(O.C.)/1600(O.C)/ memory level up features, but 790i chipset can do those speeds as well.
Some important specs:
Chipset: NVIDIA nForce 790i SLI
FSB: 1600/1333/1066/800 MHz
Expansion slots:2 x PCIe 2.0 x16 ,support NVIDIA® SLI™ technology, at full x16, x16 speed(blue), 1 x PCIe x16 ,at x16 speed(middle)