DVI-A or DVI-I would work with a vga adapter since they both include analog signals. A DVI-D port is pure digital and will not work with VGA without an active converter box and for the price of that you might as well install a vga card.
Also please be aware that the DVI cables need to be considered too. For example a DVI-D cable will fit a DVI-I port and VGA adapter but wont transmit the analog signals since it doesnt have the wiring.
Lastly check the specs on your card, I remember something about it being only to display analog thru 1 port only so you may never get 2 analog monitors to work with it.