> I would like to know I could get smooth video if I ever had an urge to buy a random newer PC game.
At what resolution? What budget limit?
If you want a good card that will play anything at 16x10 and many games at 19x10, then an nvidia GTX 560 ti (not the non-ti version) or AMD Radeon 6870 or 6950 are all good choices for under $250.
If $200-250 is too rich for your blood, the AMD Radeon 6850 can often be found under $150, and will play most games at 16x10.