I know this MB is really old and basically I only use it as a standard PC and occasionally use it to play Civ 4 (which it does with much wheezing and gasping). It is now even a bit slow for regular office work, so I thought adding a graphics card might speed things up (both for office work and Civ4). The problem is that a) I am not big into gaming so know little about Graphics Cards and b) most of the Graphics Cards that were recommended back in the day are no longer available. How to best go about picking a suitable 'modern' graphics card for this MB?