I have an older Dell Inspiron 8100, 1GB RAM Laptop. I tried to load Quake 4 on it, and it really was awful! I am thinking about getting a new laptop, and I saw several "gaming" laptops. Besides being big and heavy, what is the difference between a normal laptop and a gaming laptop? Can I run Quake 4 on a $1000 standard laptop, or do I really need to fork out more for a gaming laptop?