I'm assuming you're going with just 1x discrete gpu at this point.MSI H61M-P21 $59.99
Keep in mind that all the H61/H67 boards only support 1333 memory and with limited overclocking options (none) will be difficult to ramp up to 1600.
The only other option would be to find a P67/Z68 board, but now you get into the 110+ range and the overclocking options that these boards tout over their H counterparts are wasted on the 2100.
edit: Something else to keep in mind, H61 doesn't support SATA 6Gb/s, which isn't a big deal if you're only going to be using a HDD. If you are planning on using a newest generation SSD however you'd probably want to look towards H67.