I was told to get the cheapest card that runs dual monitor, but i have no idea about what to get. I do not have much experience dealing with computer hardware so please help! Thank you very much!!
Gt 730s are cheap and run two monitors. you can get them sub $50 pretty often
Is this the card you are talking about?
http://www.pcadvisor.co.uk/review/budget-graphics-cards/msi-geforce-gt-730-2048mb-graphics-card-review-3599292/
You don't even need to go that high. Even a 6450 will do. I've got weaker igpus that do just fine in anything.
I checked the card you mentioned, and it seems that power supply would be a problem. I found online that Optiplex 380 only has 235-255 W power supply... omg