The drive is backwards compatible with your motherboards SATA II controller so it will work limited by the SATA II interface. It is still a massive increase from a mechanical HDD, adding a card for SATA III will get you some increase over the SATA II but the PCIe X1 ver2.0 will not allow full SATA III speeds.
I personally would get the drive running it on the motherboards SATA II connection.
Alright thanks for the help.
I just look at YouTube videos of people running SATA III SSDs and they're booting Windows in like 14 seconds and their applications nearly instantly. Will SATA II be a huge performance decrease from that?