You wont find one with 2 DVI ports in a slim form factor its just too wide, but you can find ones that have a DVI and an HDMI, you can then use a simple HDMI-DVI adapter block or cable to get your two DVI connections from the card.
please don't post if you can't even do a google search. there are plenty of video cards out there that are low profile with dual dvi.
ATI Radeon HD 2400 XT is an example. It has a breakout cable to 2 dvi.