FX5200

Hi all, I just bought a FX5200 128mb card to replace my MX440 64mb card. It seems to be funning fine but when it comes to tweaking card settings I am a noob. Can someone that uses this card please tell me what you have the settings at or explain to me what Anisotropic filtering, Antialiasing filtering, and pros and cons of each. The rest of my computer is a AMD 2400+ 1gig ram. I ask because of coarse I would like it to run the best it can but it seems to run well in the all of my games but some games with intro videos, the videos are choppy but once in runs fairly smooth maxed out. Any help will be very apprieciated.