Many graphics cards on the market are designed with gaming usage in mind although they do offer good desktop application performance as well.
The GeForce G210 cards will give you decent desktop application performance, the cards are able to support VGA connected monitors only.
Choose the Quadro FX 380 upgrades and you will get cards which can fully support both DVI or VGA monitors, they also run much quieter than the GeForce range and tend to have more stable drivers giving much better overall performance.