I am building a new rig and need advice on a graphics card. I have now narrowed it down to this 8800GT, and this HD3870. I have done some searching and both seem about equal. I would get the 3870 somewhere else for $205, I just linked to Newegg to show the item. The 8800GT is about $10-15 more, but is it a lot better? Which card would perform best? I don't really play any graphically demanding games, I will be running at 1440x900 or 1680x1050. Any thoughts or opinions?