Have about $2500 to spend if need be. Looking for something to use for classes and most definitely for gaming. I like the Dell line but having a hard time deciding which model. The 17" screen on the 9300 and XPS Gen 2 is nice but seems to defeat the purpose of being portable? A fully loaded 6000 goes for around $1800. What are thoughts on that model? Is the screen size the only difference from the 9300 and XPS? Any advice welcome. Thanks.