I would like to build my own computer but i do not know how much i want to spend. SO i would like some people to come up with some specs for a 500$ machine a 1000$ one a 1500$ one and a 2000$ one. The reason i would like to do this is because i want to compare them and see what i can get for what money. I dont care if it is a p4 or amd. and one more thing i am a gamer so the video card needs to be decent. I am a fan of ati. Thanks in Adv.