Can I attach 2 dual-DVI screens to a Radeon 5870? The card (ATI Radeon HD 5870 1024 MB) has 1 dual-DVI port and 2 mini display ports.

http://i.imgur.com/iUOawq6.jpg

The dual-DVI is hooked up to a 30" 2560x1600 Dell screen. I also have a 27" 2560x1440 screen. Can I hook this new screen up to one of the display ports? Is there a way to get both screens working?
Both screens are Dual-DVI only - no other hookups.
thanks
Apple Store: Mini DisplayPort to Dual-Link DVI Adapter or similar.