Dual monitor set-up for Compaq Presario, what video card?

Hi thanks for taking time to answer my question. I desperately need to set up my compaq presario for dual monitors for trading purposes. Just curious what type of card should I purchase? Should it be PCI slot or AGP. I just need the bare minimum type of card.

Currently looking at a PCI Radeaon 700 64 DDR dual monitor video card that has, 2 VGA slots. Would this be ok? Will I be allowed to have different screens on different mopitors with this card? Thanks for any help!