A quick peak at your specs says to me for you to wait, save more money and buy a $100 video card. Both AMD and NVidia have cards that will provide good performance and use little enough power at that price point that you shouldn't need to replace your power supply as well. An SSD of 250GB is going to cost even more money and won't affect your frame rate very much. I would suggest that you leave that for another later date or machine. An extra TB of space would do little except drain a bit more power from your power supply. Good luck.