I just ordered three monitors, all have DVI. I am using two 5770's in crossfire. I already purchased an active Displaylink to DVI cable. What else is needed to connect the other two screens? Can I use a DVI Y-splitter? Can I use the Displaylink to dvi for one, dvi to dvi for the second, and hdmi to dvi for the third? I would just like to have everything ready for when they arrive.
HP S2031 (x3)
AMD Athlon ii x4 645
MSI R5770 Hawk (x2)
Kingston Hyper X Blu 8GB 1600Mhz
"Can I use the Displaylink to dvi for one, dvi to dvi for the second, and hdmi to dvi for the third"
yes to this.
those monitors have resolution 1600*900, crossfired 5770s will have hard time running games at the combined res of 4800*900. You'll probably need to use low-medium graphics settings in the games to get decent fps.