Your list contains a single stick of RAM. Get a kit with two sticks so you can enable dual channel for your memory.
^Agree with g_81, the X3 445 would probably get you more bang/buck and you may even get lucky and unlock the 4th core.
What's the budget?
Trying to keep in it in the 500 - 600 dollar range. Not too expensive since I'm looking for a new job