Went to a 4 monitor system, installed, all for less than one Matrox card. Put in two ATI radeon 9250's cards, but for only 2 monitors you could get by with one, about $125 each (A Matrox card for 4 monitors was $700 but most likely you could find one cheaper for 2 monitors). I am not going into great detail here, but I could expound further if anyone was interested. With a little research it is easy to do.