Absolutely agree with Tom. When checking out a card to do 3D you pretty much have to take 40% of the tested frame-rate and that will be your 3D frame-rate.
Considering that you need a monitor, glasses, beastly graphics card and, in your case, CPU RAM and mobo, it's definitely not something you should be aiming for yet.
To be honest just upgrading your CPU/Graphics card will give you enough extra eye candy you'll feel more "in the game".
3D is great, but it's bonkers expensive if you haven't got the hardware in place already.