I just bought a Samsung 206BW LCD monitor. What is the best PCI video card to support it?

Samsung 206BM 20" LCD Monitor. Five year old high end Sony VAIO desktop with 1GB RAM and integrated video. One PCI slot open on motherboard.|||You already have an integrated video card built in, so you don't need a PCI card. However, if you have an AGP or a PCI-E card slot you might want to consider upgrading to a more powerful graphics system. But only if you want to play high-end games.