Buying a new computer- Graphic card question

[jacattac]

I will be buying a new Dell here shortly, most likely off ebay or something because I have been able to get more for my money that way in the past. The only think that I am unsure of is which graphic card I will need to run 2 monitors. Do I just need one that has DVI or does it have to have to cards? I really have no idea about this stuff, but from reading various posts some make it sound like you need 2 cards, and some seem to work fine with one. The monitors will be 2001fps if that matters, I just really want to 8 table and my current computer is from the late 90's! Any advice on which video card that Dell offers that I should make sure to get would be greatly appreciated. Thank you for your time and I appreciate your help!!!