I wouldn't buy that board.
That's not a great price IMO. At the end of the day it's a very very low end z series motherboard from a decade ago. In general old boards are overpriced and that's not an exception.
I have the same board but the LE not LX, which is basically the same thing with a VRM heatsink. It works fine, but it's not a board worthy of that pricetag, which is equivalent to 72 USD.
I think I paid just over $100 for the upgraded version of that motherboard, an i5 2500k, Corsair cooler, and 8gb Corsair ram.
A few other things of note:
1) You may need a bios update to work with ivy bridge.
2) Even though that motherboard DOES support SATA 6gb, there are only 2 ports that run at this speed.
3) Also some early SATA III controllers from companies like Marvell weren't great. My X58 board (one generation older) has both an Intel SATA II and a Marvell SATA III controller. Surprisingly, with an older Samsung data III SSD, the sataiii controller is BARILY faster than the Intel SATA ii controller, topping out at about 50mb/s above SATA ii speeds. This could be result of the drive being older, but I have heard a lot of similar storys about these controllers from others.
My recommendation would be to either get a branded sataiii pcie card for your current motherboard, OR
Get a 7x Ivy Bridge board where the chipset has an Intel SATA iii.
The former is much more logical.