you will need a dvi splitter and a mini-dvi to dvi.
i don't know if the card will drive 2 separate displays though? i think they can drive the 30in? well they can certainly drive a single 23
disclaimers:
you need the correct mini-dvi thing, the current macbooks use a different one, all are avilable from the applestore.
i'm presuming your monitors are dvi not vga.
if there is no monitor profile for the dells it may default to the laptops own profile. if you profile the external monitor it can use that.
go to system prefs > displays > detect displays.
do some googling to find somebody who has done it before.
edit: the macbook may have a full size DVI out if it is an older model
you will need a dvi splitter and a mini-dvi to dvi.
i don't know if the card will drive 2 separate displays though? i think they can drive the 30in? well they can certainly drive a single 23
disclaimers:
you need the correct mini-dvi thing, the current macbooks use a different one, all are avilable from the applestore.
i'm presuming your monitors are dvi not vga.
if there is no monitor profile for the dells it may default to the laptops own profile. if you profile the external monitor it can use that.
go to system prefs > displays > detect displays.
do some googling to find somebody who has done it before.
edit: the macbook may have a full size DVI out if it is an older model