operaguy,to the best of my knowledge you can not run 2 instances of poser. It will look for other copies of itself and find one under local host, it then switches tasks to the open version. Additionally, i would get the best processor you can possibly afford for your athlon, and as much ram, and buy the second one as soon as possible. It is better to buy a 2200 and another 2200 later than to get both 1800+ now. Also remember that both processors have to be the same speed and that when you get the second 2200 later it will probably already have dropped in price.