Where can I get a 128 MB or higher video card for cheap?

I have purchased the Sims3 and I need a 128 MB video card and I am currently operating on a 64 MB video card. Where can I get one for cheap?|||I'm bettin if your pc is that old, you have MORE than a video card problrm.|||The cheapest video card I see for sale is 256... The cheapest one at any pc store should at least be 128...|||ebay|||Yes- im believing thats integrated, some of the low- mid range nvidias with their own ram are under 80 bucks.