Resolution on two-DVI output cards

[ScoobyDoo123]

Bit confused here about resolutions with cards that have multiple outputs.

Take this card, for example, Sapphire 4670 with two dual-DVI outputs

http://www.sapphiretech.com/uk/products/products_overview.php?gpid=253&grp=3

quote "The ATI Radeon HD 4600 Series GPUs can upscale video display to 2560x1600 on dual-link monitors which is almost twice the display resolution of 1080p displays."

Does that mean that EACH of the DVI links can output 2560x1600 or is that the TOTAL output from TWO DVI links?

If I had say two 30" screens (I wish!!) each with a res of 2560x1600 then could I run them both off this one card?

Just like to say that I'm only concerned about 2D display and not for gaming as such.

And lastly, "dual-link monitors" - does that mean that the screens have to have this technology to be able to support this resolution, so while the interface may allow 2560x1600, the monitor also have to have this support, so just having DVI on the TFT may not be enough - that right?

Looking to get two Dell 2209WA - will this be ok against this card?

Thanks