NCIX has the Zotac GeForce GTX 560 820MHZ 1GB 4008MHZ DDR5 video card on sale for $114.99 right now. There is also a $15 mail-in-rebate bringing the price down to just $99.99 and there is free ground shipping for the card.
For $100 this is good value for the performance you’ll get.
It comes with two DVI ports, 1 HDMI port and 1 Display Port. You’ll need a minimum of a 450 Watt power supply for this card.