If you're going to get a PC, I'd recommend Dell. I have a Dell laptop that I absolutely love and have never had any problems with. Stay AWAY from eMachines, and honestly I don't know many who are fans of Gateway or Compaq, either. I work on an HP at work and it's a piece of ****, too.
But why get a PC when you can get THIS?
http://www.apple.com/emac/
or THIS?
http://www.apple.com/imac/