Well there arew a few things.
First what are you going to be doing with the card/monitors/computer (photo editing, video editing, or day to day surfing/word/excel etc)?
Second, do you already have the LCDs or are you going to buy them later? Do you NEED to connect 2 DVI LCDs, or are they hybrids at all?
Third, there is no DB-15/VGA to DVI adapter that I know of (but I haven't really looked for one) so you won't be able to connect a DVI-only LCD to a VGA connector.
Now DVI vs VGA quality really depends on the setup and quaity of the parts, and how willing you are to calibrate things. DVI offers the best out of the box image quality with little adjustments, and that's likely what you'll be looking for.
LCDs don't react well to noise, and this is another reason why DVI is good for LCDs.
One out of the box advanatage of VGA over DVI is refresh rate at high resolutions. DVI runs out of bandwidth quicker than VGA on most setups, and I don't think the entry level Matrox are dual channel DVI. But for most situations you'll find that DVI will handle 1600x1200 @ 60hz without issue.
Doing any converting along the way will introduce additional 'noise' to he equation. DVI offers a cleaner signal all the way to the LCD. This really only makes a BIG difference for people doing photo editing as the tolerances for colour and such are very extreme compare to other applications. Even video editing won't matter as much.
The thing is that really dual DVI can be turned into DUAL VGA, but not vice versa (AFAIK).
If you are looking at an entry level card I posted this the other day, and you may find it a little cheaper and better suited for your needs, although nothing really beats Matrox for 2D quality, and especially their implementation of DVI.
The HIS R9600-256mb w/ dual DVI.
<A HREF="http://www.bit-tech.net/review/305/" target="_new">http://www.bit-tech.net/review/305/</A>
nV also offers FX series cards with dual DVI, I know XFX and BFG has/had some.
And FX5200 with dual DVI <i>MAY</i> be your cheapest 'current card' solution.
I would still recommend the ATI if you're doing image applications.
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