well, dell laptops arent that bad for gaming, they can acually be very good, if you have 3000 dollars to spare. and with great power comes a heafty power usage, the battery only last about 3 hours on the Dell XPS which is there premier PC and Laptop.
Dell frequently has $750 off coupons for inspiron laptops. You could configure a 9300 with a 256 MB geforce 6800 go videocard for arond $1200 final cost with the coupon. But you would have to buy additional memory from Newegg or somewhere else because Dell rips you on memory upgrades.
ya they do rip off memory, they usually have free memory doubling, but to do that you must downgrade your harddrive to 40 gb. WHY the hell would i do that.