A cheap MB will hamper your efforts to get a stable overclock because cheap MBs use inferior power handling components. If you want to clock to about 4.2, then you need to spend a little money and get a MB with a decent power handling section.
I recommend this. $90 AR
GIGABYTE GA-Z68AP-D3(R2.0) LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboardhttp://www.newegg.com/Product/Product.aspx?Item=N82E16813128538