I think it is funny how many differing opinions there are, based on everyone's individual experience. I happen to like Gateway computers, but that is because I've had good luck with them in the past. Would I buy a Dell? Never. Every Dell computer I have ever had went bad, way before it should have. But for every problem I have had, I know tons of people who have had good luck.
Robin, my only advice, as a novice and a computer killer (seems everyone I get near dies), get the best warranty you can.
Good luck with your decision. Perhaps you should look at Consumer Reports and see what their suggestions are.
Logan