What lepiaf37 didn't take into consideration is what I mentioned above... the adapter card will
a) Reduce the speed of your primary PCIe slot from x16 to x8
b) Only operate at x1, PCIe Gen 2.0
Regarding re-use of your components. Your Lynnfied CPU is over 8 yrs old and only supports 1066/1333Mhz memory.
Socket 1156 processors were P55/H57 chipsets. Example below:
http://www.gigabyte.us/Motherboard/Intel-Socket-1156Because of its age, there is no upgrade (swap) option. I suggested a standard SSD because it is compatible with a greater number of boards.
If you decide to stay where you are, then I would consolidate. Buy 1 bigger drive (dump two smaller disks) and add the standard SSD as my boot drive. Since you said all of your SATA ports are currently in use.