So my computer is a dell xps 8300, although I have changed the graphics card (radeon 6950) and with that I had to upgrade the power supply, the next upgrade i'm looking at is a new case. But I have read that dell and other companies make the motherboard so it only fits in their case, I don't know if this is true but I just need some guidance as to if i need to upgrade my motherboard as well, soon enough i plan on upgrading to an i7 soon after the new case and adding an ssd with the case, so I suppose I just need to know if I need to upgrade my motherboard with the case or if I just should and suggestions to what motherboard or case I should get, I generally game on my pc just to let you know. I believe the current case for this computer is a mid-tower and I would be upgrading to a full tower.