I am wanting to get a new processor. I have a DELL Dimension 4100 w/ a PIII 933mHz. I am planning on going to an AthlonXP 2100 or 2200. I was wondering if anyone had ever upgraded a DELL motherboard or processor. Can you put in ANY motherboard, or does DELL propietor **** like every other gay comptuer company out there. I really hope they don't. Or I will have to spend a couple of extra bux to build a whole new PC, when I have a good PC here. Please post if you know or if you have upgraded to a new mobo in a DELL system. Thanks.