My motherboard only has one DVI port
VGA doesn't look as good as DVI at 1080pSo you have 2 monitors and you want to connect both to your computer? If that's the case I don't think it matters a great deal - choose DVI for one and then try each of the other methods and decide which you like the look of best.
Will this setup work?Or get an ati dvi to hdmi connector. These ones do audio/video. I'm sure you'll be able to get a cheap one from thebay