Wich computer would run sims 3 good?

I would go with the dell. It has a good graphics card, and great processor, great ram. The Best Buy one doesn't even have the required processor speed. The Future shop one just meets requirements, but the dell one is faster than the required processor speed, double the required ram, meets the video card requirements (which can be upgraded when checking out). And Dell's are exceptionally good. I have a Dell with 2.0ghz processor, 1gb of ram, everything basic. And it runs World of Warcraft, and the Sims one and two with no lagging. So this comp should have no trouble running the new sims. Good Luck!