1337RPG :
Thanks. So I need a DVI cable?
You only need to be able to attach your two monitors. Any way you can.
Many monitors offer a selection of attachment ports or cables.
Usually, the 6850 will give you a dvi, vga, and hdmi port. You can use any two of the three.
If you need an adapter to connect, they often come with the card, but are cheap regardless.