and doog, ATI's high end cards tout the eyefinity shit, where you can game using three monitors. Most cards nowadays come with at least VGA, DVI, and HDMI support. I myself use the HDMI and VGA to extend my desktop to the couch TV.

If you want cloned screens instead of extensions, it's usually less of a hassle to just get a 1x3 HDMI splitter.

Or alternatively, if you're going to use monitors that can only accept VGA, there's lotsa hdmi-vga, dvi-vga, my penis-vga cable attachments out there.